How does a modified constant current/taper work?
This charger uses a first rate of constant current of: Battery Ah 5 = Amperes until the battery reaches a voltage of 2.40 volts per cell. After this stage the charger switches to a second rate taper charge mode, with the battery voltage rising to approximately 2.44 volts per cell, allowing the current to taper down. This taper rate depends on battery discharge and age. The taper rate is fixed by the charger timer for a 5 hour period after which the control unit switches to the equalizing mode at: Battery Ah 30 = Amperes This rate will continue until the overall charging time has reached 12 hours. On a new battery under equalizing charge the voltage will rise to approximately 2.6 to 2.7 volts per cell.
