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Posts Tagged ‘Milliamps’

Chargers for 18650 Batteries

Sunday, March 7th, 2010

Therefore, the batteries can be used in items with smaller cell designs, such as the items mentioned. Of course, to keep a digital device in tip-top shape, you need an 18650 battery charger. Fortunately, there are a number of chargers available online that are reliable as well as helpful in keeping your 18650 battery packs performing optimally in any electronic equipment you may acquire. Therefore, chargers are a necessity if you own any of the aforementioned electronic devices and you want to keep them functioning.

Battery Capacity

To understand a little bit about battery charging, it’s good to know something about battery capacity. Capacity is the energy that is stored within the battery. If you have a battery with a higher capacity then, you will not have to recharge your battery as often. Therefore, it’s important to be aware of the capacity of the battery you’re buying. The capacity of a battery is designated in amps, or in milliamps in commercial applications. Thus, a battery with a capacity of 2 Ah is equal to 2,000 mAh. Also, the more battery cells you have in a battery, the higher the capacity.

Tenergy Chargers

One of the best known brands of 18650 Li-ion batteries also makes a good charger as well. The Tenergy multifunction charger, as the name suggests, is not only good for recharging your 18650 Li-ion batteries but other lithium type batteries too. Reasonably priced, the Tenergy charger is just under $14 U.S. in price. Simply charge your battery and refer to the LED light to find out when it’s done charging. The LED will display a red light while your battery is in charging mode and will turn green once the charging is complete.

Tenergy also sells a plug-in charger which is good for charging any 18650 battery. It’s a universal plug-in charger; therefore, you can use it about anyplace worldwide. That way, you can travel with your laptop and also your charger, and never have to worry about any downtime. The LED light also lets you know by its green color when the battery charging is complete. If you need a charger that you can use specifically for your 18650 Li-ion batteries, then this is indeed the right charger for you. It retails for around $13 U.S.

The Ultrafire Charger – Model #WF-139

Ultrafire makes a model WF-139 charger for lithium battery models 14500, 17500, 18500 as well as 18650 Li-ion batteries. This quality charger works on all manufacturers’ brands of batteries. It has a 100 to 240 volt power input, which is automatically adjusted when you use the device. Controlled by a microprocessor, the device automatically stops charging the battery as soon as charging is complete. The charger will not charge over any battery that has been discharged.

How Does The Ion 18650 Lithium Battery Work?

Sunday, March 7th, 2010

Lithium is a metal that is highly reactive; therefore, it is also a metal with a very high potential for converting chemical energy into the needed electricity for digital equipment. In fact, in some lithium 18650 li battery cells, the electrochemical potential is five times greater than it is in battery cells that are made of lead and three times greater than the amount for alkaline cells. Lithium, too, is very flexible. As a result, it’s also a feasible metal to use in the designs of small cells, or the type of cells used in such electronic items as laptops, digital cameras and palmtop computers or PDAs.

Battery Specifications

A typical 18650 3.7v battery cell then is a cylindrical Li-ion cell which is lightweight. Most cells are around an ounce and a half in weight. General capacity is measured at 2,200 milliamps or 2.2 amps. Usually, any amount higher than this number causes one to question stability. The maximum charge is 2.4 amps while the maximum discharge current is 4.6 amps.

The Process of Ionization – How a Lithium Battery Works

As stated, in the case of a lithium battery, as with all batteries in general, chemical energy is transformed into electrical energy. This process begins when electricity is supplied to the battery by way of a battery charger, which subsequently becomes a conduit for the electrons. The negative charges combine with the molecules in the lithium and are forced between spaces in the metal’s crystal planes. The electrons then ionize the lithium. Ionization, as a result, causes the metal’s planes to become loaded to the extent that they maintain a constant flow of energy. It also breaks down the reactive properties of the lithium in the battery.

The Case for Lithium

Needless to say, to keep your laptops, notebooks, iPods, PDAs or digital cameras working without interruption, it’s important to charge your Li-ion batteries. Plus, lithium, as stated, is a highly reactive type metal. Therefore, you will always receive an adequate power supply if you use such a battery as a power source.

Keeping your Electronic Devices in Working Order

There are a number of 18650 battery cells and battery chargers on the Internet. Some of the best known brand names for lithium batteries and chargers include Sanyo, Panasonic, Samsung, Ultrafire and Tenergy. Tenergy offers consumers Li-ion battery cells as well as chargers. The universal plug-in charger made by the company is designed specifically for 18650 Li-ion batteries. Especially adaptable for traveling, you can carry the lightweight device with your other digital equipment and never have to worry about your batteries losing their ability to keep items running, such as your cell phone or laptop.  Therefore, you can plug in the charger anywhere in the world and have access to your notebook, laptop, or PDA without the worry that you will be without a personal means in which to communicate.

It’s helpful to understand how a lithium battery works and how the metal impacts our daily lives. Look on the Internet for all your lithium battery and charger needs.

Best 18650 Rechargeable Battery

Sunday, March 7th, 2010

So, what is the best rechargeable battery among the 18650 rechargeable batteries on the Internet? Much of this decision has to do with your own charging needs with respect to the type of digital equipment you own and their battery requirements.

Obtain the Appropriate Data

For example, when you’re buying a rechargeable battery pack, say, for a laptop, you have to know the computer’s make and model in order to see what batteries are made for that particular piece of equipment . The make for your computer is the name of the manufacturer. The model is the name of the line associated with the brand of your computer and a related number. For example, if you own a Hewlett Packard computer, then Hewlett Packard is the make of your computer. HP LL208w, for instance, is the model. Therefore, you need to correlate the part number for the battery with the make and model of your computer. In essence, if you don’t determine the part number, then you’ll definitely have a more difficult time trying to shop for a rechargeable battery that is designed for your specific laptop or notebook.

The Best Battery is the Best Battery for the Type of Equipment you Own

As a result, the best rechargeable battery among the 18650 batteries on the market can’t be defined unless you can make a comparison of the batteries that are primarily designed for certain notebooks, laptops, personal digital assistants (PDAs), or cell phones.

Determining Capacity

As most laptops require lithium batteries, it’s good to become familiarized with the lithium batteries that are currently on the market. The best rechargeable batteries usually have higher capacities or runtimes. Therefore, the higher the capacity of your rechargeable lithium battery, the less time is needed for recharging your battery. As battery capacity is measured in amperes, or milliamps for commercial purposes, the higher this number is on your rechargeable battery, the better. In most cases, if you choose a lithium 18650 battery with 2,400 mAh (milliamps/hour) or 2.4 Ah (amps/hour), that should suffice. Of course, certain electronics may require a little more amperage as they can create quite a drain on the battery.

The Number of Cells

With respect to capacity, you’ll also want to determine the number of cells that your laptop or notebook, for instance, needs. If you have more cells in the battery, then, of course, the capacity will be higher. Therefore, knowing the specifications with regards to capacity can help you in finding the best rechargeable lithium 18650 battery for your computer or electronic needs.

If you’re looking for the best rechargeable battery, take some time to consider the requirements for your particular piece of equipment. Only then, will you be able to determine the best battery for your specific situation.