Product details brand vivi type e-bike battery base material aluminum alloy abs color black composition 1*battery base 1*connection port discharge port 4 pins base discharge cable port 3 output cable xt60 female port bullet head port net weight 0.2Kg 0.5Lb gross weight 0.5Kg 1.1Lb base size 390*10*80mm 15.4*0.4*3.2Inches packing size 390*170*80mm 15.4*6.7*3.2Inches 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 h7ul electric bike, compatible with 48v 36v electric bike battery. Universal interface: down discharge 4pins discharging port , with 4 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.