Four-bank, eight-amp battery charger, maintainer and desulfator. Features two amps per bank with a 40Ah capacity range for charging and maintaining multiple vehicles. Compatible with 6V and 12V lead-acid batteries, including flooded, gel, AGM and lithium-ion batteries. Integrated thermal sensor alters charge based on ambient temperature. Charges batteries as low as 1V and features a force mode for completely dead batteries. Automatically detects battery sulfation and acid stratification to restore battery performance. Fully automatic for everyday use with zero overcharge.