TM 9-6140-200-14
Figure 1-2
Described above has less of an effect on battery performance at lower discharge rates.
At slow discharge rates practically all of the acid may be consumed, and the material
near the centers of the plates has more of an opportunity to take part in the chemical
reaction.
The lead-acid storage battery is chemically reversible. A discharged storage battery
can be charged (pass electrical current through it in the direction opposite to the
direction of discharge) and its active chemicals be restored to the charged state, ready
to deliver its stored energy. This discharge, charge cycle can be repeated over and
over until plate or separator deterioration or some other factor causes the battery to fail.
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