LiFePO4 Car Start Battery,According to the authoritative test, Real vehicle test, ... test, fuel-saving effect is up to 5 %, the CO and HC emissions also reduce accordingly, remarkable energy saving effect.24 ... , 36, 48V series of lithium battery packLarge energy densitySmall volume and lightweightLong cycle lifespanNo pollution, eco-friendly5 to 6 times life ...