Brand new and high quality. Built in safety recharging system which won't damage your battery. LED indicator light shows when charger is working. Fit battery: 72V Lithium Input voltage: 100V-240V, 50Hz. Output power: DC 84V. Output current: 3A max. Note: please make sure the polarity connects correct. This charger is NOT compatible with 36V or 48V or 60V version scooters.