Lithium iron phosphate battery LiFePO4 48v (51.2v) 12Ah The best replacement for 4 lead batteries 12v 12ah, there is no need to buy a new charger (if it works), with dimensions like 3pcs lead batteries 12v 12ah. Fireproof. They work at low temperatures. LiFePO4 type Rated voltage - 51.2v Operating voltage range - 38V - 58.4v Charging voltage - 58.4v Maximum charging current - 0.5C (6A) Rated charging current - 0.2C (2.4A) Maximum short-time discharge current - 20A Rated discharge current - 1C (12A) Charging temperature range - (0 + 45 ° C) Discharge temperature range - (-10 + 60 ° C) Internal resistance ≤ 70 mΩ (AC 1000Hz) Weight 5000 g Charging type CC / CV Protection board ( overcharge, overdischarge, balancing) The body is pulled together by PVC. Connector XT60 (JY60) Dimensions 295 * 151 * 76mm Lithium Iron Phosphate (LiFePO4) batteries are compatible with most lead acid battery chargers. Charging at 56v is suitable. Cyclic operation after 2000 cycles (full) at rated charge and discharge currents 70% residual capacity. Store at 50% charge. There are other batteries, see my ads.