Model.NO.：TDR621Z Specification ：Type of Battery: Lead-acid battery 17Ah48V Dimension: 1730*690*1140 Input voltage of battery: AC220V 50Hz Motor power:48V、350W Brushless、Perpetual magnetism Recharge time:≥500 times Charging period: 4-9 hours Over voltage protect value: 42±0.5V Over current protect value: 19±1A Max Speed: 35Km/h Range : ≥50Km Diameter of Wheel: 16〃 Type of Tire: 16*2.5 Wheel Base: 1200 Net Weight: 65Kg Max Load: 125Kg Material of Frame: Full steel container:32PCS/20”, 66PCS/40”, 66PCS/40”HQ