Rockbros 10400mah Bicycle Lamp Battery Pack 18650 Lithium Cycling Rechargeablemobile Power Supply

Specifications: Brand ROCKBROS Color Black Weight 242g Size 2.3*15.5*4.3cm Capacity 10400Mah Voltage 8.4V Charging method Charger Charging time About 4h Watterproof Yes Working time About 9h Features: 10400mah bicycle headlight battery pack, waterproof, large capacity, you can quickly charge. Full 9 hours long battery life, 4h fast charge. Bundle binding installation, convenient and firm. Thick non-slip mat, not easily displaced. Package included: 1x 10400Mah Power pack