Waterproof Battery Pack Case Box for 6 Batteries for Bicycle Lamp & Smartphone

Features: The waterproof battery pack is mainly optimized based on the traditional 8.4V lithium battery pack. This battery box has the XP7 waterproof function. Suitable for kinds of context of use. Do not use spot welding battery, which can greatly reduce the internal resistance of the battery and improve the battery discharge performance, thus effectively improving the battery life. Easy to use, this battery pack can use two or four or six lithium battery according to your needs. Have DC connector input and output voltage 8.4 V. USB connector output voltage 5V, current 2A, equipped with charging function of mobile phone. Supports power display function. Specifications: Condition: 100percent Brand New and High Quality Material: Plastic Color: Black Size: Approx. 8.7 x 6.5 x 4.5cm 3.4 x 2.6 x 1.8inch Waterproof: XP7 Over charge Protection Voltage: 8.4V Over discharge Protection Voltage: 5V Current Over discharge Protection Voltage: 9V Awaiting Current: below 10ua USB Output Voltage: 5V+ 0.2 USB Output: Max. 2100mA Weight: Approx. 200g Packing List: 1 x Battery Case 1 x Strap .