... 3,low self-discharge 4,perfect sealing flat plate electric vehicle colloid batteryfor electric vehicleAdvantageDesigned working life is 3 years ( 25°c) and ... seal design guarantee the safety and avoid accidents caused by battery leaking.Non-pollution, No corrosion, can be placed in any ... store over 30°c, recharging 5 to 8 HrsFactory Picture electric vehicle colloid battery flat plate