Product details brand vivi type e-bike battery base material aluminum alloy abs color black composition 1*positioning glue 1*guide rail 1*plastic base discharge port 4 pins base discharge 2 pins base discharge cable port xt60 female port net weight 0.2Kg 0.5Lb gross weight 0.5Kg 1.1Lb battery size 450*160*154mm 17.7*6.3*6.1Inches packing size 460*160*160mm 18.1*6.3*6.3Inches quantity 1pc product features note: battery base only. Batteries and cables not included. Please check the size and original before purchasing. Wide application: the battery base is suitable for vivi gopina electric bike, compatible with 48v electric bike battery. Universal interface: down discharge 4 pins & 2pins discharging port , with 4 & 2 pins. Please confirm the battery specification before placing an order. Waterproof and wear-resistant: made of strong aluminum alloy abs material shell, waterproof and wear-resistant easy installation: the battery base is easy to lift, install and remove, stabilizing the battery for safe riding. Package content 1 x electric bike battery base note: due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you.