/diy/ - Do It Yourself

>>797158
>charge the battery directly?

What do you mean by that? Do you want to remove the battery from the phone then charge it, or leave the battery in the phone and provide power to the phone's charging circuits?

The first option will not work. You can't just stick a battery on a power supply and expect it to charge effectively and safely. You need a charge controller circuit to prevent things like overcharging. Your phone has one, so you just need to connect 5v/gnd and it will take care of the rest. Simplest way for you to do this is to solder wires to the PCB where the broken USB connector is. 5v to Vcc.