Special Features:

Sealed gel battery; gelled electrolyte won't spill even if tipped upside down or cracked open

Properties:

A battery, composed of two or more cells forming a single unit, which may or may not be readily separable and which may be efficiently recharged by sending an electric current through the cells in a direction opposite that of the discharging current. the item may be furnished with integral charging facilities. for items which are composed of a single cell see cell, battery.