TDH29Z Aluminum Electric Bicycle with Nickel Hydrogen Battery and 150W Motor Specifications Powerful brush motor, rare-earth permanent magnet products Manual assist raiding with smart control Car class roast paint , aluminium alloy structure Battery: nickel hydrogen 7Ah, 24V Charger: 220/110V, 50 - 60Hz Motor: 150 - 280W efficiency: >72% Charger life: >250 times Controller: Lowest voltage protection: 31.5V Over-current protection: 15+/-1A Net weight: <25kg Rated loading: <75kg Max. load: 120kg Distance per charge: 45-55km Charging time: 2-6 hours Max speed: 23-24kph Packing size: 1,450 x 300 x 780cm 184pcs/40HQ; 80pcs/20GP