This battery USB-C Module is designed for the AGB MAX screen.
If you are using another screen kit, then you need to purchase another battery kit.
TUTORIAL
Features:
Main battery power switch
Quick LOGO update function (connecting to the AGB IPS MAX kit)
OSD battery display function (connecting the AGB IPS MAX kit)
Product Includes:
1x USB-C Module Board
1x 1800 mAH Battery（obtained in the actual test）
1x USB-C Battery Cover（Color optional）
Warning
Risk of fire if improperly charged or if battery is punctured.
If using original housing, do not force the battery to fit in the Game Boy Advance battery compartment. Trim more plastic away from the shell until you guarantee a good fit.