Features: Built-in intelligent dual ic chip to prevent the battery from overheating and losing service life Protection: short circuit protection/overcurrent protection/overvoltage protection/overshoot protection/temperature protection The body is made of fireproof material, with a fan, good heat dissipation Input voltage: 100-240V Scope of application: 36V lithium battery Input frequency: 50/60HZ Output voltage: 42V Charging current: 2A Power: 84W Working temperature10-50 degrees Celsius Charging method: constant current-constant voltage Dimensions: 146 x 70 x 45 mm