18650battery.net

18650 Battery Dimensions: What to Consider When Buying

john — Sun, 10 Apr 2011 15:31:50 +0000

For many years, we have been using a lot of rechargeable batteries. Battery packs have gone a long way beginning from its nickel-cadmium roots. This is considered to be the first alkaline battery. This was used heavily for commercial purposes before being replaced by the more advanced nickel metal-hydride rechargeable battery. This was more reliable and lasts longer compared to nickel-cadmium batteries. However, the nickel metal-hydride battery was soon replaced by an even more advanced battery. The lithium-ion rechargeable battery stores even more power and so, lasts longer in-between charges. With more power, it can also juice up more power-hungry devices, but do you know the 18650 Battery Dimensions & Specifications?

A standardized format used in producing li-ion rechargeable batteries is the 18650 format. This is a cylindrical cell measuring 18 X 65mm. The 18650 format battery is the most economical li-ion rechargeable battery format based on cost-to-energy ratio.

Advantages of Li-Ion Rechargeable Batteries
Li-ion batteries are usually chosen for various purposes. These are as follows:

It is able to store more power.
It can provide power to power-hungry devices.
Relatively low maintenance.
Built in features for longer lifespan.

The best rated li-ion 18650 batteries can store a lot of power with only a relatively short charge. This allows you to use your appliance for a much longer period. For instance, with just about 2 hours of charge, the best rated li-ion 18650 battery can run for about 8 hours.

The 18650 li-ion battery can provide a stronger power during usage. This means that it can cater to appliances that require more power such as electrical drills. If the battery provides less power, the drill may not operate in its optimum condition since it is not drilling as hard as it should. With a stronger power, the drill is able to turn faster and thus, drill harder.

With best rated li-ion 18650 batteries, you do not need to take care in charging as you do with other types of batteries. This is because it is relatively difficult to overcharge the battery. When it has reached its full capacity, its integrated circuit will stop it from being charged further. On top of that, you do not need to discharge the battery periodically even if you do not use it since there is no memory effect.

As mentioned above, the 18650 li-ion battery contains extra features that help it to have an easier maintenance. This includes the ability to regulate voltage levels when discharging. Other than that, some products also have thermal cut off protection, effectively terminating access to the battery if it overheats. All this adds to a longer lifespan of the best rated li-ion 18650 batteries.

When buying 18650 rechargeable batteries, there are a few points that should be considered. These are:

storage and output levels.
chargers.

It is very important to take note of a li-ion rechargeable battery’s storage levels. Usually, it is available in the following flavors:

1600mAh
2400mAh
2600mAh
3000mAh
3600mAh

The higher the number, the more storage the battery is capable of. It should also be noted that with a higher storage capability, it will take a longer time for it to be fully charged. In relation to that, the output levels of the battery should also be noted. The normal output level for 18650 li-ion batteries is about 3.7V. A higher number means more power is output to the appliance.

Along with rechargeable batteries, we should also consider the chargers for these batteries. There are many different types of chargers. Some of them can charge only 2 batteries at a time while others can charge up to 4. Some chargers have light indicators while others do not. We should choose one that fits our requirements and budget.

AW 18650 battery: The Best Li-Ion 18650 Battery Brand?

john — Sun, 10 Apr 2011 15:27:44 +0000

Much like any other product that people buy these days, even electronic accessories come under brand names which all have their own pros and cons. Especially in terms of batteries, these brands are basically indicators to define which among these is better from the rest and why. Almost every electronic item we see and use these days is operated with a battery, may it be our cell phone, laptop, car, camera and countless other items. Therefore, knowing the right brand of batteries is very important for each of us.

Coming far ahead from the time when the batteries were supposed to be for one-time use, manufacturers have now been producing rechargeable batteries extensively. These batteries are a one-time expense that people need to make. For a long time after that, they can easily be reused by recharging them. The 18650 batteries, which rely on lithium ions’ movement from one terminal to another, have come to be one of the most popular types in terms of usage and production. With a large number of people using these batteries for various electronic gadgets, the best rated Li-ion 18650 batteries are available in a number of categories, which are:

- Small cylindrical battery – This type of Li-ion battery has a solid body and is made without terminals. It is mostly used in gadgets such as 18650 flashlight and even laptops. Popular brands include Tenergy, AW 18650 battery and rechargeable Ultrafire 18650 batteries.

- Large cylindrical battery – Also a solid bodied battery, it has large size terminals that are threaded. It is mostly available in China-made brands.

- Pouch battery – The pouch battery is flat and has a soft make. This type of battery is mostly used in mobile phones. The popular brands include Sony and LG.

- Prismatic – It also has large sized terminals that are threaded. It is encased inside a semi-hard casing and is generally used in packs for vehicle traction.

Besides the fact that Li-ion batteries can be recharged again and again, they also have a number of other advantages which make them a good option for anyone:

- They are available in a large range of sizes and capacities, making it easier to fit them in the gadgets that require them.

- Considerably lightweight in comparison to other external batteries.

- The self discharge rate is around 5 to 10 percent monthly, much lesser than the commonly used nickel metal hydride battery (30 percent a month).

- Safe for the environment due to the fact that the lithium metal is not exposed in any way.

Before buying the batteries, however, one should consider what purpose one buying them for because the choice of batteries will depend on the purpose they are needed for. While buying the batteries, one should look for the ones that have self-discharge. This is because there have been bad examples of substandard Li-ion batteries that seemed to be self-discharging but were actually losing their capacity to perform. This is why it is always advisable to go for the best rated Li-ion 18650 batteries because although they charge more than the average batteries, they save the user from any worries.

There are a number of Li-ion 18650 battery brands such as Tenergy, AW 18650 battery, LG, rechargeable Ultrafire 18650 batteries etc. According to amazon.com, three of the best rated Li-ion 18650 batteries in the U.S. include:

1. Tenergy – Being the topmost in terms of user ratings on amazon.com, the Tenergy batteries are also the most expensive of the lot. However, the price becomes secondary considering the five-star rating its 3.7 volts battery has received from the users. The feedback shows that the battery has been able to garner 100 percent customer satisfaction. They have not only received positive reviews for packaging but also for the fact that they don’t heat up that quickly. As a result, the devices can be used for a longer time.

2. Obtronic – Also receiving five star rating from the users, this brand of batteries was found to have the highest energy density and was praised by the users. Only one of the users mentioned it being the same in use as the China-made batteries.

3. LG – The LG battery cells are another one of the best rated Li-ion 18650 batteries that have received good reviews from the users. It can be utilized for multiple purposes, with a greater density for energy and a design for optimizing electrodes. It can be used for cameras, 18650 flashlight and e-books as well.

18650 Lithium Ion: Rechargeable Battery Review

john — Sun, 10 Apr 2011 15:22:32 +0000

Rechargeable 18650 Lithium Ion Batteries
Li-ion batteries are the most advanced rechargeable batteries currently used in the consumer market. It is currently being used in many items including mobile phones, laptops, cameras and other mobile consumer electronics products. Its ability to store power and quick charge to full capacity makes it attractive for common and frequent use.

Li-ion usage has been steadily increasing in the past few years. Sales are increasing by 10% every year. Conversely, the prices of li-ion batteries have dropped from $4 per watt-hour to about $1.50 per watt-hour. With a lower price, more and more products are now using li-ion batteries. This in turn drives the price down even further.

One of the most economical formats of li-ion batteries is the 18650 Lithium Ion format. Batteries with this format have the measurement of 18 X 65mm.

Choosing 18650 Lithium Ion Rechargeable Batteries
It is not easy to choose the best rated li-ion 18650 batteries. There are a lot of factors that need to be taken into account. However, 18650 li-ion rechargeable batteries have a lot of advantages over other rechargeable batteries. These include:

No memory effect.
It is able to store more power.
It has built-in protection to extend its lifespan.

With other types of rechargeable batteries especially nickel cadmium, there is a serious problem called the memory effect. This happens when the battery is charged before it has fully discharged. This causes the battery to be ‘confused’ about its maximum possible charge. Subsequent charges will cause it to charge to a point lower than its maximum possible charge. This is known as the memory effect. In the long term, the battery will lose its capacity and will have to be replaced. This problem is not present with li-ion batteries. As a result, li-ion batteries last longer than its counterparts.

With a different chemistry used in li-ion batteries, the best rated 18650 Lithium Ion Batteries are able to store more power compared to other types of rechargeable batteries. This effectively means that li-ion batteries can provide power for a longer period of time.

A new feature found in the best rated li-ion 18650 batteries is the integrated printed circuit board (PCB) protection. This feature controls the voltage that goes in and out of the battery. It prevents under-voltage at 2.5V and over-voltage at 4.25V from happening. If voltage falls too low, it will cause the battery to over discharge. On the other hand, when voltage rises too much, it will cause the battery to overcharge. With the internal PCB protection, the issue of overcharging and over discharging will not happen anymore.

There are many different manufacturers of the best rated li-ion 18650 batteries. These include Ultrafire, Tenergy and Trustfire. The prices of li-ion 18650 batteries between these manufacturers vary. The price difference is mostly caused by extra features or capacities between one battery and another. Usually, the more expensive battery will have extra features such as thermal cut-off protection. Sometimes obtaining a more expensive battery can ensure a battery that is of better quality comparatively as well as a battery that has a longer lifespan.

Typical 18650 Lithium Ion Rechargeable Batteries
Unfortunately, all the li-ion 18650 batteries produced by the manufacturers mentioned above have similar features. All Ultrafire, Tenergy and Trustfire li-ion batteries have the following characteristics:

Integrated PCB protection prevents batteries from over charging and over discharging.
The batteries can be charged more than 400 times.
The batteries come in a range of different storage levels.

Doing a search for li-ion rechargeable batteries with the 18650 size in Amazon.com provided information on the more popular choices. The Tenergy brand of li-ion rechargeable batteries seems to be more popular than the rechargeable Ultrafire 18650 batteries.

Tenergy li-ion 18650 rechargeable batteries can still maintain 90% of their initial charge even after 400 charges. It is expected that these batteries will last more than 500 charges. The rechargeable Ultrafire 18650 batteries, on the other hand, can only maintain about 85% of their initial charge after 400 charges.

With this in mind, it is clear that popular choices are made based on the features that differ from one battery to another. This can be due to the fact that a lot of the features are already very similar. As such, the battery that has that extra edge will be the more popular choice.

18650 Charger: The Best Way To Charge Lithium-ion Batteries?

john — Sun, 10 Apr 2011 15:20:27 +0000

There is only one method to charge lithium-based batteries. The self-styled “miracle chargers”, which promise to reinstate and prolong batteries, do not exist for lithium chemistries. Neither does fantastic-fast charging apply.

Makers of lithium-ion cells have very stringent guiding principles in charge processes and the pack should be charged as per the producers “typical” charge method.

Lithium-ion is a very clean structure and does not require priming as nickel-based batteries do. The 1st charge is no dissimilar to the 5th or the 50th charge. Labels teaching to charge the battery for 8 hours or more for the initial time may be a leftover from the nickel battery days.

Most batteries are charged to 4.20 volts by a tolerance of +/?0.05V/cell. Charging merely to 4.10V abridged the capacity by 10% but gives a longer service life. Newer cell are able to deliver a superior cycle count with a charge to 4.20 volts a cell.

Even though the voltage peak is attained faster with elevated current, the topping charge will take much time. The charge time of the majority chargers is nearly 3 hours. Little batteries utilized for cell phones can be charged at 1C; the larger 18650 cell/battery used for laptops should be charged at 0.8C or a smaller amount than that. The charge competence is 99.9% and the battery remains chilly throughout the charging. Full charge is achieved after the voltage threshold has been attained and the current has fallen to 3% of the rated current or has leveled off.

Some chargers, such as the 18650 charger, claim to fast-charge a lithium-ion battery in an hour or less. Such a charger removes stage 2 and goes straight to “ready” once the voltage threshold attained the end of stage 1. The charge intensity at this point is nearly 70%. The topping charge normally takes two times as long as the first charge.

No trickle charge is used for the reason that lithium-ion is not capable to absorb overcharge. A nonstop trickle charge over 4.05V per cell would cause plating of metallic lithium that could direct to instabilities and negotiate protection. As an alternative, a brief topping charge is given to compensate for the little self-discharge the battery and its shielding circuit consume. Depending on the battery, a topping charge possibly repeated once each 20 days. Normally, the charge knocks down when the open terminal voltage falls to 4.05V per cell and turns off at a high 4.20V per cell.

What happens if a battery is unintentionally overcharged? Lithium-ion is designed to work safely inside their standard operating voltage but become unsteady if charged to greater voltages. When charging over 4.30V, the cell makes plating of metallic lithium on the anode; the cathode material turns into an oxidizing agent, loses steadiness and discharges oxygen. Overcharging makes the cell heat up. If left unattended, the cell could explode with blaze.

Customers Reviews:

Many customers’ reviews represent that Tenergy Multifunctional Charger for Li-ion Cylindrical Rechargeable Batteries (14500, 18500, 18650, RCR123A) is a smarter choice and really works good. It’s very useful because one can charge the 18650 batteries and the c123 ones as well. Other features include that it also informs through a light when they complete charging, one can also use a 12-volt adapter as if one wished to charge batteries in the car. It is user-friendly and done charging instantly in minutes. The charger accepts batteries of diverse lengths and the base contacts move up and down to accept batteries which are longer in size. The base contact is connected to a spring to give a safe grip on the battery. The charger at a time is capable of charging 2 x 18650 batteries. It can charge 1 battery at a time if that’s all one require.

18650 Holder: The New Generation Of Holders And Chargers

john — Sun, 10 Apr 2011 15:10:33 +0000

Since more and more people buy lithium-ion batteries mostly because of their durability and additional safety measures included, there are also other accessories needed, such as 18650 holder, charger and even case practical for everyone to carry the batteries around. The 18650 holder is designed to hold the batteries inside the electronic devices. Sometimes they can be even confused with the chargers, but the difference is obvious, mostly by the performances. The 18650 holder can be made for one, up to four batteries, and it usually has build-in protection circuit module. Some important features of this product, model 18650-4S1P-14.4V made by SmarTEC are:

Charging voltage DC 16.8 V
The Maximal continuous Charging current is 4A
In case of overcharge, the detection voltage is 4.325±0.025V
Over discharge detection voltage is 2.4±0.08V
Detection delay time 200-500us
Protection circuitry ≤60mΩ
Operating temperature range -40+85

When it comes to 18650 holder, the most important thing is the safety, and this holder can make it happen. On the other side, the user should not mis-handle the holder, because in the case of wrong polarity placement, can happen an accident while charging the battery.

Just like 18650 holder, the right charger must be provided in order to keep the batteries durable and safe for the users. Charging the lithium battery might not be a hard job, but it must be done properly. The type of charger plays the biggest part and the brand, as well. The most popular and best-selling chargers are made by Ultrafire, Tenergy and Trustfire. The best-selling product is for sure the UltraFire 18650 3000mAh 3.7V Rechargeable Li-Ion Battery (Pair) + Charger Combo, partly because of the perfect combination for an affordable price, and partly because of the great performances. The features of this product are:

It can charge two batteries simultaneously,
Has an indication light that shows when charge is complete,
High safety of battery charging,
Input voltage is 110-240V, 47-63Hz,
Output is 4.2V 600mA,
Its dimensions are 3.34 in x 1.85 in x 1.49 in,
It has overcharge and discharge protection,
Protection available at 2.75v and 4.2v,

On the other side, the best Tenergy charger is type Multifunctional Charger for Li-ion Cylindrical Rechargeable Batteries (14500, 18500, 18650, RCR123A). Its greatest benefit is the fact that it can be used for many battery types and it has contrary polarity protection and distinguish from batteries. The customers say that its only downside is that is can used only for charging Tenergy batteries. It is also said to be a bit slow, but it is understandable, because it can charge different types of batteries. Also, it is said that the slower chargers can make the battery last longer.

The Trustfire 2500mAh 3.7V IC Protected 18650 Rechargeable Li-Ion Battery (One) + Charger Combo is also one more combination of the battery and charger. This charger is also multifunctional, since it can also charge Ni-Mh AA, AAA, C, D, 9V batteries. The customers are also very satisfied with this product, mostly with the performance and the price, as well.

The price is not everything. No one want to get the cheap 18650 holder or charger and then use it for a couple of days only or completely destroy the battery itself. Safety is the most important thing, and when it comes to charger, anything could happen if someone uses it in the wrong way. That’s why the more expensive products and known brands are better choice for everyone, because they provide reverse polarity protection, overcharge and discharge protection, and make the device and batteries last longer.

18650 Flashlights: Info You Need

john — Sun, 10 Apr 2011 15:09:33 +0000

Flashlights are an essential part of every household these days. Especially for people who have suffered through power breakdowns and know how spooky darkness can seem like, it is necessary to own a flashlight. Since it is easy to carry around, it acts like a savior in certain situations. Whether it is used by people for domestic purposes, for travel or even for professional use, a flashlight is perhaps one of the most important inventions for all of them. For anyone who doesn’t own one and wants to know more about them, one of the most important things to consider is which flashlight to buy.

The most imperative thing to consider in a flashlight is the nature of its battery. Many people make the mistake of buying flashlights whose batteries do not last for long and as a result, they quickly run out of power. This can especially be a problem when you are travelling or are stuck in an emergency situation only to realize that your flashlight is out of battery. This is why the 18650 flashlight is the best type of flashlights to buy because their batteries can easily be recharged after use. Thus whenever you go out of the house or need one in case of a power breakdown, you can be assured that they can be recharged easily.

Types of 18650 Flashlights

The 18650 flashlight might be available in the market in a larger range and variety, but the most popularly used types are:

- The cylindrical flashlight – This is the most common type of flashlight to be found in houses and is the first one to come in people’s minds as soon as they hear the name flashlight. Since most of these are battery operated, using rechargeable 18650 batteries will make them run for a longer time. Moreover, you can save money by not having to purchase batteries over and over again. These are available in normal as well as LED bulbs. Ultrafire WF-139 and Surefire M3LT Combatlight are some of the popular cylindrical flashlights.

- The tactical flashlight – These flashlights are normally used by army or police personnel. It is known for its compact size and easy portability. Usually the army or police personnel hold it in one hand with the weapon in their other had. Due to the usage of rechargeable batteries, they stand out for their durability. The 18650 batteries also make it possible for them to be carried on any mission without taking a supply of batteries in case the flashlight runs out of power. Olight M3X Triton Cree Xlamp XM-L and the Streamlight NightFighter are popular tactical flashlights.

Besides these, there are a number of other types of flashlights, but the usage of 18650 batteries is not too common in them.

Why buy 18650 Flashlights

The biggest advantage of 18650 flashlight is the usage of rechargeable batteries that are not only easy on the pocket for the users but also have a number of other advantages:

- The 18650 flashlight is quite lightweight due to the Li-ion batteries used in them.

- The battery discharge rate is considerably lower than any other type of battery.

- Because it is rechargeable, it can be easily carried around any place and is the best thing to carry for any adventure trip.

What to look for in 18650 flashlight

When buying a 18650 flashlight, you should keep in mind a few important factors:

- Where will you mostly need it?

- How big or small a flashlight do you need?

- Do you need bright light?

- Is budget a constraint for you?

If a flashlight fills all your requirements but seems expensive to you, always remember that any good and reliable brand with charge for its name. However, the end product you will get will be right on the money. In any case, you need a 18650 flashlight mostly in situations where its use is inevitable, whether it is a power breakdown emergency or an adventure you are out on.

Which are the best 18650 flashlights to go for?

According to amazon.com, the bestselling 18650 flashlight models are:

- Olight M30 Triton Special Operations 700 Lumens Tactical Flashlight – Although it is still unrated by the users, the response received by this 18650 flashlight can be guessed by the fact that it is among the bestsellers on the website. Its bright light and compact size make it a practical flashlight to be carried by any adventurer or troops on their duty.

- FlashMax X950 – CREE LED Flashlight – This 18650 flashlight is not for casual usage and is better for places where high-power light is needed. This is perfect for adventures, mountaineering, trekking and even for use during power breakdowns.

- JETBeam RRT-2 Raptor Creee R2 Flashlight – Receiving 100 percent reviews from the customers on amazon.com, this 18650 flashlight stands out for its brightness and is ideal for use for military and police personnel.

Tenergy 18650 Battery: Top 18650 Rechargeable Cells?

john — Sun, 10 Apr 2011 15:07:50 +0000

There are many different kinds of ways that you can save on energy today. As we know that every light bulb will finally burn out, we are also aware that during the lifetime of the cell – at any arbitrary moment, 1 in 100,000 li-ion cells will either blow up or catch fire. So for this reason advancement was put up a couple of years back, known as printed circuit board, (PCB).

The protection PCB (printed circuit board) prevents the li-ion cell from being over or undercharged, both conditions are dangerous for li-ion battery. PCBs are often gold-plated with 50 micro inches of hard gold which can be seen on the underside of the PCB when you look at the Tenergy battery. As positive terminal is just ordinary metal, the negative is gold.

Features of Tenergy 18650;

Product Description:

Tenergy Multifunctional Charger for Li-ion Cylindrical Rechargeable Batteries with 18650 Li-ion 3.7V Batteries is a superb charger for 1 or 2 pieces cylindrical Lithium-Ion (Li-ion) accessible with 17650/ 18650 / 18650 (protected) batteries. It’s a rapid charger as compare to its alternative models.

Model: SC-S2

This charger is a gifted charger especially designed to charge rechargeable 18650 17650 Lithium-Ion batteries. Li-ion 17650 / 18650 and Li-ion 18650 (PCB prevention)

Specification:

Input: 12V DC 1200mA (min)

Output: 4.2VDC 1000mA*1 1000mA *2

2 pieces Individual LED represents:

BLUE ON – Stand by

RED ON – Battery Charging

BLUE ON – Charge complete

Features

Detection about charging end guarantees the safe and full charge any time
Short-circuit guard
High voltage cut-off prevention – prevents harm to battery due to high voltage
Complete personal channels – ease of use; prevents 2 batteries charge together
Charge technique: CC/CV – Charge battery fully and rapidly
Reverse polarity prevention – prevents harms to your battery and charger

Nominal capacity of Tenergy 18650 rechargeable batteries comes in 2600 mAh, Minimum 2450 mAh, with Internal PCB (printed circuit board) protection. Printed circuit board prevents under-voltage at 2.5V and over-voltage at 4.25V both the scenarios. Dimensions of Tenergy 18650 include the diameter of 18+/-0.2 mm, Height 66+/- 0.2mm and weight (Typically) Approximately 46 gram.

Special caution should be used when working with Li-ion cells; they are very sensitive to charging characteristics and may blow up if wrongly handled. Keep in mind user has enough information on Li-Ion rechargeable batteries in charging, discharging and assembly before using them. The batteries should be kept in fire-proof container during charging not on wood surface or carpet.

Product Characteristics

Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V.
Dimensions: Diameter 18+/-0.2 mm Height 66+/- 0.2mm
Higher energy density and lower weight than other types rechargeable batteries
Building portable power device needing high energy density and low weight
Cycle Performance: 90% of initial capacity at 400 cycles, Cycle life: > 500 cycles.

Customer reviews;

Feedback and opinions show that Tenergy 18650 successfully obtaining the huge response from its consumers. Errors are witnessed at neglect able quotient. The Tenergy 18650 are available in 2000, 2200, 2600 and 3000 but 2600 with PCB is gaining popularity rapidly because of its durability as compare to other rechargeable batteries. PCB provides a security to its users from losing their appliances due to over or under charging. That is the main reason mostly users go for Tenergy 18650 2600 with PCB. The results are magnificent when used in flash lights or any other appliances. Some users faced problems also regarding the weight and thickness of batteries as they faced conflict between the dimensions quoted and perceived after usage but still it is highly acknowledged by a number of customers.

Sanyo 18650 Battery: The Best 18650 Battery?

john — Sun, 10 Apr 2011 15:05:52 +0000

Now a days we have come across different experiences of 18650 batteries for our gadgets and portable devices like Music Players, Flash Lights and various other digital devices. Buying and buying the disposable batteries is a bit annoying and some times an over burden on our wallet so why don’t move towards rechargeable batteries as this a wise choice and not expensive as well.

The best buy in this particular category are many but the Sanyo 18650 can be considered as the real worth for your money and time. You can now stay powered for longer by using this small but magnificent item. These are eco-friendly and green power concept oriented.

Key Benefits & Features

Sanyo 18650 are the bet among the tribe as they are being in use of many people and the customers are really happy with the fringe benefits of the product. The lesser burden on pocket is always welcomed and when the matter is like cost efficiency with greater performance every one goes to get it. The main benefits can be arranges as they are

- higher energy density with optimized electrodes design

- low-priced in the long run

- long-lasting

- durable

- quick recharging

- high battery safety

- free from leakage of liquid electrolyte

- easily available

- environment friendly as compared to disposable batteries

- reduced/no memory effects

Benefits are only enjoyable when then the products are worthy and able to provide peace of mind to the customer or user. Many Benefits are never experienced due to slighter information about the particular product and wrong usage can cause the lesser performance of product same in this the things which should be kept in mind are

Things to Know

– Never leave batteries unattended when charging

- Never use old batteries with new one

- Put the batteries in fire-proof container

- Do not dispose off in fire or Leak

- Store in cool place

- Off course they have a shelf life, check before you buy

- Check for Genuine Batteries

- Use Same company Batteries for better performance

- Do not put batteries on wood surface or carpet when charging

- Never try to modify the batteries as it may result bad

The bulleted points are the general guidelines for using the rechargeable batteries like Sanyo 18650. However the better care always ends in better result. Using the rechargeable batteries is always a wiser choice because they long last and handy to charge the batteries right away with the help of various types of chargers available like the amazing option of solar energy charger or car charging kits etc.

Paying more or getting more

The products from good companies always cost a little high than those of unknown brands because the promise of best performance and reliable product underneath their brand name. No doubt the unknown brands can be bought in comparatively cheap rates but the performance and reliability becomes question mark in this case. Why should one save some bucks when he knows that it will be going to frustration and dissatisfaction in the end. On the one hand it is being said that the rechargeable batteries are long-lasting and best worth for money but on the other hand some one goes for saving a little amount by purchasing unknown brands resulting poor results. So one time higher cost is giving the better payback with the greater peace of mind ultimately.

Customer Reviews

This battery (Sanyo 18650) holds its charge and compares well against competitors and is a reliable product as it can be used in camera’s, toys and other type of electronic items running on batteries. Quick recharge time and long-lasting. These batteries are safe and good in performance. The charger is easily available in the market for these batteries.

The Best Brand Of Rechargeable 18650 Batteries

john — Sun, 10 Apr 2011 15:02:12 +0000

Selecting the best brand of rechargeable 18650 batteries means finding a product from a reputable company that will last you longer and cost you less in the long-run. There are several 18650 batteries in the market that combine low-cost with high quality.

The product with the best reviews in terms of customer satisfaction is 6 pcs Tenergy Li-Ion 18650 3.7V 2200 mAh battery with Tabs. In addition to providing customers with a great product, Tenergy is able to offer low prices too. Given below are some of the main features of the product.

The batteries are light in weight yet have greater energy density.
Cycle performance is at 90% of the original capacity and gives you over 500 cycles.
The diameter of the batteries is 18+/- 0.2 mm with a height of 65+/- 0.2mm.
The Current is 0.5C mA with a voltage of 4.2 V and an end current of 0.01 mA. Additionally discharge current is 0.5C mA with an end voltage 3.0V.
Strict quality assurance under ISO9001-2000.
Tested under International Electrotechnical Commission (IEC) standard to ensure maximum capacity, great quality and life-time application.

The list of the best brand of rechargeable 18650 batteries would be incomplete without the Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery. Not only is the price quite reasonable, these batteries are light weight and will last a long time. Some of the main features that Ultrafire provides are listed below.

It has complete PCB protection.
Upper and lower voltage limit permitted by the battery is 2.5V and 4.25V respectively.
The energy density is relatively higher than other batteries.
The batteries are light in weight.
Quality is assured under ISO9001-2000
International Electrotechnical Commission (IEC) standard of battery tests are done to ensure greater capacity, quality and life time
Used for devices requiring 3.7V.
Easy to carry due to light weight and ease of use.

Among the best brand of rechargeable 18650 batteries, another name that is gaining popularity is Trustfire 2500mAh 3.7V IC Protected 18650 Rechargeable Li-Ion Battery which comes in combination with a charger. The whole set is for a surprisingly low price but does provide quality to go with it.

For use in some specific flashlights and other devices.
Can be charged as many as 500 times.
Is able to hold 85% charge for a period of 3 months.
The charger gives the additional advantage of charging Ni-Mh AA, AAA, C, D, 9V batteries.

When buying the best brand of rechargeable 18650 Batteries there are some basic features that you should look for.

Look for quality rather than price.
Find a reputable company with great customer reviews.
Ensure that the battery you’re buying can be re-charged easily.
Check for voltage and other specifications to find the one you need.
Search for a higher energy density product.
Make sure the battery is light weight.
Find one that has the longest life.

Customer reviews:

Customers particularly favor the Tenergy batteries because of the protective casing and tabs that prevent damage and discharge. Many customers were pleased that the batteries were able to give 99.99% of the expected capacity.

For the Ultrafire batteries the main feature that customers enjoy is the ease of removing and recharging them. A recharge once a week is enough for regular daily use.

Customers of Trustfire batteries rave about the long-lasting charge of the product. One customer even claimed to have used the batteries for 19 days on one charge.

The Best Rated Li Ion 18650 Batteries

john — Sun, 10 Apr 2011 15:01:31 +0000

There was a time when there was no concept of being able to move electronic devices from one place to another. However, ever since the introduction of batteries, the portability of many devices has increased to a greater extent. Take the example of telecommunications. With the introduction of cell phones and their increased portability, communication has become so much easier. And to a greater extent, that evolution has been accredited to the fact that cell phones come with a rechargeable battery that makes their portability much easier. With batteries becoming rechargeable and smaller, the devices have become easier to carry and maneuver.

When it comes to rechargeable batteries, there are a few types that are available to people. Among these, the most in-demand batteries are Lithium-ion or Li-ion batteries and the alkaline batteries. Since the two have been in equal demand on sites such as amazon.com where many of their brands are on the bestsellers’ list, it is imperative to know how they differ from each other. Moreover, it will also help in determining which one is better than the other.

Li-ion 18650 batteries

The Li-ion 18650 batteries are considered to be one of the best options in terms of rechargeable batteries. Their usage is in many electronic devices and with their growing popularity; people are now showing more interest in learning about the best rated Li-ion 18650 batteries. Four types of this battery have been produced. These include:

- 18650 cylindrical (small) – With its solid body and sans terminal, this Li-ion battery does not have any terminals. Its usage is mostly found in electronic devices such as 18650 flashlight, some models of cell phone, laptops and digital cameras. Rechargeable Ultrafire 18650 batteries, AW 18650 battery and Tenergy batteries are some of its popular brands.

- 18650 cylindrical (big) – Comprising a firm body, this type of Li-ion batteries have big terminals that are wired. Mostly it is found in the brands that are imported from China.

- 18650 pouch – It has a softer body and a flat surface, with its usage mostly found in cell phones. Most popular brands include Sanyo, LG and Sony.

- Prismatic – Much like the large cylindrical batteries, these too have wired terminals. It comprises a relatively soft case.

Besides their ability to be charged over and over again, Li-ion batteries also offer a lot of other benefits. Their easy availability in different sizes and shapes makes them flexible to be used in a variety of devices. They are lighter in weight and discharge less fluid than other batteries. Additionally, their usage is found to be safe for the environment.

Alkaline battery:

Although they initially came with no option to recharge them, the alkaline batteries now also come with the option of recharging them. They are known to retain the charged energy for a long time.

They have a huge disadvantage, however, due to the increased resistance internally, reducing the life of the gadget they are used in. In gadgets which need higher current to start, these batteries normally encounter failure. In its rechargeable form, it is worse in performing than the conventional alkaline battery that was introduced initially.

Li-ion 18650 Is A Better Choice

It is easy to conclude from the descriptions above that although alkaline batteries introduced their rechargeable version following the cue of Li-ion 18650 batteries, they just failed in the attempt. Before making the purchase of even the best rated Li-ion 18650 batteries, it is important to determine the purpose you need them for. A person who wants to buy them should always choose the one with self-discharge. The best rated Li-ion 18650 batteries may cost a bit more, but they also come with assurance of much higher performance than any other battery.

Many Li-ion 18650 brands are available in the market and online, including rechargeable Ultrafire 18650 batteries, LG, AW 18650 battery and Tenergy. The best rated Li-ion 18650 batteries in the U.S. currently are:

1. Tenergy – They are given five-star ratings by the users on amazon.com due to their ability to gain completely positive reviews. Customers have shown appreciation that it does not overheat too fast and is very device-friendly.

2. Obtronic – Another one to gain full points, it is the best in terms of energy density.

3. LG - With their amazing energy density and for optimum electrode result, these were also able to garner five-star appreciation from the customers. They are used in 18650 flashlight, video camera and mp3 player.