The on-board charger is a charging device for the battery of pure electric vehicles (BEV) or plug-in hybrid electric vehicles (PHEV). It can convert the alternating current from the mains to direct current for charging. 

Delta offers a variety of on-board charger solutions with output power ranging from 3.3kW to 7.5kW for single-phase and 11kW to 22kW for three-phase. The efficiency is above 93% and it supports CAN communication.