Method for reducing the float current of maintenance-free battery. [Zn additive] (original) (raw)

1978

Abstract

A maintenance-free battery having improved float-current (i.e. current-draw) characteristics is provided by adding elemental zinc, or a zinc-affording compound such as zinc sulfate to the battery in amounts sufficient to decrease the float current that would otherwise occur during voltage-regulated overcharge. Rather than utilizing zinc alone, a mixture of zinc and cadmium may likewise be employed.

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