Features:
Do not worry the long-term storage of the battery, the failure of the bulge, causing the extrusion machine to damage the shell.
If need test the machines regularly, without looking for disposable batteries or charging them in advance. Plug and play, power off when unplugged.
The interface of the power board is a type-c, powered by a 5V power supply.
Suitable for GBA Game Console

Package include:
1*USB Type C Slot Power Board Back Cover