The battery will be charged under voltage of 16V±0.1V. It is allowed to be charged with constant voltage under maximum current of 0.1C20A (C20 is the 20 hours’ rate of the battery). Charge the battery until charging current is nearly 0 and kept still for 2~3 hours.
The battery will be charged under the current of 0.1C20A. The battery is considered to be fully charged if the voltage variation is ≤0.05V / h .
