This 48V battery charger for 4 cell of lead acid battery offers durability, compact design, precision, technical intelligence and economic efficiency. The charger provides full protection and status indication. The 48V lead acid charger operates in three phases: pre-charge, CC and CV. Charge is terminated when the battery is full. The typical application includes 48V SLA ebike charger, 48V external battery charger for SLA AGM GEL VRLA batteries.