Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/Green

Tecmate OptiMate Lithium 4s 6A, TM391, 10-step 12.8V 6A Lithium Expert Battery Saving Charger & Maintainer, Blue/GreenMore charging power and current at 6A!Ultimate protection for your high performance Lithium (LiFePO4 / LiFe / LFP) battery.Most advanced 10-step charging and battery saving program.BMS (Battery Management System) wake up mode safely wakes battery with integrated BMS protection out of sleep mode.TUNE mode provides stable battery support during ECU programming.