Car battery 1,save 5% oil 2,fast start-up performance 3,long cycle life 6-8years. Car batteryHipower lithium iron phosphate battery is ... than cars equipped with lead-acid battery.Hipower LifePO4 battery has light weight and optimized size. Light weight means energy would be ... reduced, and weight reduced also means long driving distance. Optimized size batteries are suitable to replace group 31, 4D, 8D, ...