Applicable for various brands of lead-acid batteries, scooters, wheelchairs, dolphin scooters, battery packs, etc. It is compatible with most lead-acid battery products on the market Multiple protection, efficient operation, safe and worry-free, dedicated integrated chip; automatic repair; microcomputer pulse; anti-water loss and current limit; anti-overcharge and voltage limit and overload protection. Intelligent temperature control protection, automatically adapts to various environments and automatically cuts off power when over temperature. Note: This power adapter is not waterproof. Please keep dry when using. Suitable to Lead acid battery bike battery 60v 12ah-20ah-30ah 100% Brand New and High Quality. The input voltage: AC 220V/50Hz Output voltage: DC 60-74V / 2.8A Output current:2.8A Application:60V/ 12AH 20AH 30AH