Curenta 12V 12Ah lithium ion solar battery uses 32700 cylindrical cell with spot welding technology. This 4S lipo battery is with built-in BMS which carries on protection function. This 12V 12Ah deep cycle battery is also with option Bluetooth function through which battery real -time state can be monitor on the phone Bluetooth app. This 12V solar battery can be used for solar street light, electric tricycle, UPS, scooter, mechanical machine, golf cart trolley, automatic shopping car and so on.