A controlled overcharge of a battery bank for the purpose of restoring equality of charge in all cells.
A continuation of normal battery charging, at a voltage level slightly higher than the normal end-of-charge voltage, in order to provide cell equalization within a battery.
a controlled overcharge of an already full battery to restore all the individual cells within the battery to the same state of charge.
An extended charge of a battery beyond the full charge to insure the complete restoration of active materials in all the plates of all the cells.
An equalizing charge is an extended charge (up to 20% overcharge) for guaranteeing a fully-charged state.