4 Slots 21700 Battery Power Shell Charger Box LCD Display Power Bank DIY Case s

Features:
Can be installed 4x flat 21700 lithium battery(battery not included)
Plug and play, long charging time.
LCD digital display, easy for you to monitor the real-time battery bank capacity.
Made of premium material, it is wear resistant and durable.
Portable design, convenience to carry, small volume design is very easy to carry.
The power bank case needs to be welded with batteries in parallel.

Specifications:
Material: PC
Size: 95*52*47.5mm
Type-C Input: 5V2A/5V4A/9V2A/12V1.8A
Output: 5V2A/5V4.5A/9V24A/12V1.8A

Precautions:
1. The battery cannot be used if its outer skin is damaged.
2. Pointed batteries cannot be used, only flat batteries can be used.
3. The positive and negative poles need to be placed and used correctly.
4. Do not use or store in a high temperature environment.

Package include:
1x 21700 Power Bank Case(Batteries not included)