Power Bank Case 2×18650 With Circuit
1. Without battery, only 18650 lithium battery without protective plate can be installed.
2. The spring is the negative pole and corresponds to the negative pole of the battery. With reverse connection protection, the reverse battery does not burn!
3. You can take a battery pack, which is a genuine battery.
4. Size: 100x40x20mm
5. Input: 5V 1A Output: 5V Max 2A
6. The power is displayed by 4 indicators, each representing 25%
7. Press and hold the switch and the light will be on.