Our Electric Bicycle Batteries use special technology, with a capacity greater than 100% over the energy of 36Wh/kg above, and use high-quality grid alloy, ultra-pure electrolyte, and the unique design of the safety valve. Our batteryadpots the fully sealedleak-proof structure,you can use the battery in any direction (except inversion). Float can be used, there also can be recycled. Feature: 1) Maintenance-free, Complately Sealed (all gases recycled internally) 2) Excellent plates for maximum surface area, optimized recycling 3) AGM Seperator design eliminates acid spills 4) Robust internal cell connections prevent vibration damage 5) High integrity terminal seal 6) Self-regulating relief valve 7) Low self-discharge rate Specifications: 12v24Ah GUANGDAO BATTERY pull and pushbattery packused for e-bike, e-scooter,small size, light weightwith CE nominal voltage: 12V