Optimate Lithium 4S (TM270) battery charger, 12.8 / 16V, 9.5 A / 7.5 A 8-stage automatic charger for LiFePO4 3-200A Ideal for charging LiFePO4 / LFP (lithium iron phosphate) batteries with 4 cells in series with a nominal voltage of 12.8V 13.2V. Special functions: - Low voltage LiFePO4 battery saver - LiFePO4 special charge cycle - Maintains and protects LiFePO4 batteries - BMS battery recovery. Features: - CHARGE CURRENT: 8A - USE: indoor / outdoor (minimum temperature: -4 ° F / -20 ° C). - SAVINGS: Start with low voltage of 0.5V + 3 levels of save and low voltage test. - IDEAL FOR: 12.8 / 13.2V LiFePO4 (LFP) batteries with 4 cells in series of 2 30 Ah. - INPUT: global (100-240V 50-60Hz), high efficiency (CEC listed), fully encapsulated. Scope of delivery: - Wall mount weatherproof case - 1x 6ft / 180cm power cable - 1x 6ft / 180cm charging cable with SAE connector. Weatherproof battery cable and standard battery terminal set Safety: No risk of overcharging. Completely safe for vehicle electronics. Spark suppression. Safe for long-term battery maintenance. Automatic shutdown in case of short circuit or disconnected battery.