The ultimate battery charger for 12. 8V (4s) & 16V (5s) LiFePO4 / LFP batteries! OptiMate Lithium LFP Select is perfect for high performance batteries that demand, auto-fast, temp. controlled charging! Program steps - STEP1: Low Volt Start (0. 5V). STEP2: TEST before CHARGE STEP3: Temperature check. STEP4: Ultra LOW VOLT SAVE. STEP5: LOW VOLT SAVE cell monitoring. STEP6: TEST cell damage. STEP7: Cell-balancing CHARGE. STEP8: OPTIMIZE. STEP9: TEST after CHARGE. STEP10: OptiMate maintenance. Perfect for 12. 8V / 16V LiFePO4 / LFP batteries sized from 2. 5 to 200 Ah. Power saving stand-by mode. Full electronic protection against errorsSpecial features: Battery SAVE mode with BMS reset : starts from 0. 5V with continuous monitoring / testing of charge acceptance or bad / shorted cell condition. Unnecessary (and unsafe) charging of a bad battery is prevented. safeTº : Automatic charge rate adjustment to ambient temperature sensed at the charger. Reduced charging below freezing, no charging if temperature is bel...