Product description
Type: Battery Charger Board
Package included:1 X Battery Charger Board
Portable Mobile Power Supply Module.
Hold down the button after standby, LED digital display power supply.
LED digital screen shows current battery power when charging.
When discharging, the LED digital screen displays the current power, and the display saves about 30 seconds (double-click button to restore the display).
After charging and discharging, the system will provide accurate battery instructions.