8.4V battery pack 26650 battery box, USB/8.4VDC dual interface waterproof battery boxBlueThe product is shipped based on the color or size of the main image of the product page, if you have special requirements, please leave us a message.Colour:blueFeatures:1. This battery box has XP7 waterproof function.2. There is no need to spot welding the battery, which greatly reduces the internal resistance of the battery and improves the battery discharge performance, thereby effectively increasing the battery life.3. Easy to use, two 26650 or two 18650 lithium batteries can be used.4. With DC connector input and output voltage of 8.4V. The USB connector has an output voltage of 5V and a current of 2A, and it has the function of charging mobile phones.5. With power display function.Net weight: 126GWith packaging weight: 158Size: 9.5x7.2cmProduct specifications:1. Overcharge protection voltage: 8.4v2. Over-discharge protection voltage: 5v/3. Current over-discharge protection voltage: 9v4. Standby current: below 80ua/5. USB output standard voltage: 5v?0.26. USB maximum output: 2000ma(The battery needs to be aligned with the positive and negative poles, otherwise the battery box will be burned out)