red 6-slot lithium battery charger, 18650 waterproof battery box, USB 5V output battery pack AZ8482 Description£º***** This battery box has XP7 waterproof function.***** There is no need to spot welding the battery, which greatly reduces the internal resistance of the battery, improves the battery discharge performance, and effectively improves the battery life.***** Easy to use, two or four 18650 lithium batteries can be used.***** 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.***** With power display function.***** Size: 11.5X8X5.7cmProduct specifications:1. Overcharge protection voltage: 8.4v2. Over-discharge protection voltage: 5v/3. Current over-discharge protection voltage: 9v4. Standby current: below 10ua/5. USB output standard voltage: 5v¡À0.26. USB maximum output: 2000ma(The battery needs to be aligned with the positive and negative poles, otherwise the battery box will be burned out)Six battery boxTwo interfaces, 8.4v can output and input, 5v output, can be put into 18650 as a charger, can be used as a portable battery box, charger, power supply for bicycle lights, USB lights, etc.***** Only the box does not come with charger and battery