Proper use and durability
Although these batteries can be used in any device that supports a standard size (AA, AAA, C, D, etc.), they are formulated to last longest in periodical use items. This type of battery is best suited for use in
low-drain devices such as remote controls or for devices that are used periodically such as flashlights, television remotes, portable radios, etc. If they are discharged by less than 25%, they can be recharged for hundreds of cycles to about 1.42 V. If they are discharged by less than 50%, they can be almost fully recharged for
a few dozen cycles, to about 1.32 V. After a deep discharge, they can be brought to their original high-capacity charge only after a few charge-discharge cycles.
[edit] Comparison to other rechargeable batteries
Compared with other rechargeable types, the rechargeable alkaline battery is relatively low cost. Cells can be manufactured in the fully charged state and retain capacity well.
Their capacity is about 2/3 of primary cells. Being of dry-cell construction, they are completely sealed and maintenance-free. Cells have a limited cycle life, which
is affected by deep discharge; the first cycle gives the greatest capacity, and
if deeply discharged a cell may only provide 20 cycles. The available energy on each cycle decreases. Like primary alkaline cells,
they have a relatively high internal resistance, making them unsuitable for high discharge current (for example, discharging their full capacity in one hour). [1]
http://en.wikipedia.org/wiki/Rechargeab ... ne_battery
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