Please note that： Before ordering, please make sure that the connector of the old charger is the same as ours. 60V 4A battery charger, the rated charging voltage is 72.5V max , suitable for 60V Lead Acid Battery 1. If you receive a damaged item by the shipping, Please don't use the damaged item to charge. 2. Please use the products within one year. 3. Do not use over 12 hour per charge time. 4. Please charge in a ventilated environment. 5. Please don't cover the charger. 6. Please make sure your hands and the plugs are dry. Parameter 1.Model Number ：YZ260 2. Input parameters: 100-240V 47-63Hz 3. . Output parameters: 72.5volt 4A 4. Type of working battery: 48V Lead Acid Batteries 5. Stable MTBF: >30000H 6. Efficiency: >87% 7. Small Size: 150*75*48mm 8. Light Weight: 0.5Kg 9. Material: PC UL94V0 Specification 1. Material: ABS + PC 2. Charger Model: CC(constant current) CV(constant voltage) 3. Operating Temperature: -50°F~122°F 4. Storage Temperature: -104°F~+176°F 5. Operating Humidity: 20~90%RH