Hello, if we use rechargble batteries on your device how can we get functionality for charging it via usb
Are you talking about HTCC-AB02A?
yes, we want to unsolder the 1/2 aa battery package and use another type of battery
Connect the positive and negative poles of the battery directly to the positive and negative poles of the battery holder and it should be ready to use.
Connect the battery and USB at the same time, it will automatically start charging.