* Multiple safety protection designs: 58.8 V 4 A charger is suitable for 48 V polymer lithium batteries with short circuit protection, overvoltage protection, overcurrent protection, multiple safety protection designs make them safer and safer. Maximum output power: 58.8V 4A, Minimum output power: 48V 4A, input parameters: 100 - 240v 47 - 63hz. * Fast charging: 58.8 V battery charger lightweight, small, stable, highly efficient, etc. Precise voltage and current limit, qualified fully charged and avoid overcharging. High efficiency and quick to charge. * Charger for e-bike: Each charger is CE / ROHS approved and made by the manufacturer from high-quality materials and safety valves. Please check the size of your original charger and port carefully before ordering. * Ternary lithium charger: built-in cooling fin and fan, the use of an aluminium heat sink can cool the power device better. In accordance with the principle of hot air flow, the service life can be extended.