Activate or prepare new batteries within one hour (60Æ), including Pb (lead-acid, dry-charged AGM) with separate acid pack, factory activated Pb (AGM & GEL) and LFP lithium delivered in sleep mode and/or requiring a top up charge Automatically save any type of deep discharged battery from as low as 0.5 Volts, additionally for LFP lithium, manually reset the protective BMS and save from zero The automatic diagnostic charger for 4x 12V Pb lead-acid (STD, AGM, GEL) and/or 12.8V LFP lithium (LiFePO4 / Lithium Ferrous Phosphate) batteries Testing during charging to confirm if battery is safely recoverable, followed by a state of health (S.O.H.) test to confirm if battery is serviceable 4 fully independent 5 Amp charging stations/banks, each with 3 Selectable modes to service NEW and USED powersport batteries Each bank delivered with a replaceable output cord and fused battery clip set, AC power cord is replaceable/exchangeable State of health test for GOOD (80 - 100%), OK (60 - 80%) or BAD (below 60%) batteries 24-7 Optimate maintenance keeps battery at 100% until ready to be used Lithium: push-button battery management system (BMS) reset. BATTERY CHARGER OPTIMATE PRO 4 DUO