This 18650 waterproof battery case is optimized on the basis of the traditional 18650 8.4V lithium battery pack. After optimization, it has the following advantages:

1. This battery case has XP7 waterproof function.

2, do not spot welding the battery, which greatly reduces the internal resistance of the battery, improve the battery discharge performance, thereby effectively improving the battery life.

3, easy to use, you can use two or four 18650 lithium batteries.

4, with DC connector input, output voltage 8.4V. USB connector output voltage 5V, current 2A, with a charging function for the phone.

5, with power display function.

(The battery needs to be aligned with the positive and negative terminals, otherwise it will burn out the battery box)

Six battery box

Two interfaces, 8.4v can output 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 light supply and so on.

Product specification:

1. Overcharge protection voltage: 8.4v

2. Over-discharge protection voltage: 5v

3, current over discharge protection voltage: 9v

4, standby current: 10ua or less /

5, USB output standard voltage: 5v /- 0.2

6, USB maximum output: 2000ma

Colour: Black

Material: ABS

Size: 11.5X8X5.7cm

Weight: 170G

Package Contents:

1*18650 battery box

Only the above package content, other products are not included.