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Information Article about AAA Rechargeable Batteries
Here, we present to you, some fundamental information about AAA rechargeable batteries.
Nickel Metal Hydride is the most popularly used rechargeable chemistry today in AAA size batteries. One very good reason for this is that NiMH batteries do not suffer from “memory effect” and are the ideal choice for high consumption devices such as today’s consumer digital cameras, mp3 players, GPS units and many other often used products, especially where display information is shown on a LCD (Liquid Crystal Display) screen. An LCD screen alone, is a good indicator that the product consumes high power or energy. When a battery does not experience “memory effect”, it means that the battery will not be left with less power than it was manufactured with (and intended for) should it be recharged prior to it being fully drained. A battery that doesn’t experience memory effect is enticing to consumers who wish to have no worries about when the correct time to recharge is.
It must be mentioned here that AAA NiCD (nickel cadmium) batteries can experience memory effect. Their chemistry is different than NiMH. In order to maintain the peak voltage NiCD batteries were intended to house, it’s essential to only charge them once they have become fully depleted of power. In this way, no lessened memory will prevail.
As with all batteries, AAA rechargeable batteries are rated in the mAh (milleampere hours) they have. The higher the mAh rating is, the longer it will last for you. This means the longer the run-time each cycle will provide between charges. A charge cycle is the “Life Span a battery has on 1 Full Charge”.
AAA NiMh batteries are 1.2 volt, rather than 1.5 volt like their Alkaline counterparts, but due to their discharge curve, they power devices that were designed for 1.5 volts. They are equivalent and ideal replacements.
The nominal capacity of rechargeable AAA batteries falls between 700 mAh and 1200 mAh (milliampere hours). NiMh AAA batteries can be charged 700 to 1000 times, as mentioned earlier, these are called cycles or charge cycles.
Price is a factor to be aware of as well. The more highly rated (mAh) batteries are appropriately more expensive than lower rated cells.
There is a newer technology in AAA size rechargeables which offer a low self-discharge (LSD) benefit. This type of technology is great for the “occasional user” who might not use batteries as regularly as the next person. In batteries that are not low discharge, their typical self-discharge time (when unused) is between 30 and 40 days, but the low self-discharge cells will hold their charge for two years with very little discharge. If you believe that low discharge rechargeable batteries are the right choice for you, it’s a good idea to buy a big batch when you find a good deal somewhere! And make sure, they are FRESH with good date codes as well. In this way, you will be the most assured of having working batteries for a long time to come.
Of importance to all users of outdoor solar lighting, the use of AAA NiCd batteries is top choice. Especially where the 600 mAh batteries are concerned, they are the ideal choice for solar lights.
As far as price is concerned between the different types of AAA rechargeable batteries, NiCD’s are less expensive than NiMH because they typically offer less power to begin with than NIMH ones do, and also because they can experience memory effect and NIMH do not. Their chemistry dictates that they are immune.
Both types of AAA rechargeables can be purchased in many big box stores and also, for less money, and without leaving your house, online!
Lithium Ion is also a rechargeable battery chemistry but as yet is not available to consumers in AAA size as they are not made for consumer devices or products, therefore some advice to you - do NOT use any Lithium Ion rechargeable battery in your consumer devices because you will ruin the circuitry of the unit.
We trust that this page has given you some valuable background knowledge about AAA Rechargeable Batteries.
If you have any additional questions that have not been discussed here, we invite you to contact anyone of our battery experts with your query as we’re always glad to help you with technical battery guidance.
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