AA Rechargeable Batteries

Many electronic devices require power from AA batteries. Those who own one or more of these devices prefer using AA rechargeable batteries to save on costs and get longer lasting power. A set of alkaline batteries (non-rechargeable) can only last for a few shots using a Canon digital camera for example, while high powered NiMH (nickel-metal hydride) rechargeable batteries can power the device better and longer.

AA rechargeable batteries are more expensive than single-use alkaline batteries but bring about efficient results. Capacity of these cells depends on the type. Nickel cadmium (NiCD) has 500 to 1100 mAh capacity. The higher capacity types are usually more expensive. NiMH cells are available in different capacities starting from 1300 to 2900 mAh.

AA rechargeable batteries usually can supply 1.2 volts so before buying one, check the device that you’re going to use it with. Some electronic devices require higher volts so other types of AAs may be more appropriate.

Newer types of AA rechargeable batteries have low discharge capacity. It’s natural for rechargeable batteries to self discharge even when it’s not being used. With a low discharge type, the batteries retain capacity even after six months. An average of 90% of charged capacity is retained after six months and 85% percent after 12 months. That is dependent on the storage temperature as well.