I have a Ulefone phone with a broken USB-C port. There are important files on it that I can't back up onto my new phone. I was thinking about opening it up, checking the battery specifications, and potentially replacing the battery connections with leads from a bench power supply. I have the necessary skills and tools for this, and I'm willing to take the risk since the phone doesn't have to survive the process. I'm just trying to find a way to access my data since I can't afford a technician right now.
4 Answers
You could definitely push some charge into the battery using the bench power supply. Alternatively, connecting to the leads inside the damaged port might be a more reliable route. But using it just as a fake battery isn't ideal for me.
I was thinking of connecting the battery to a power block’s charging circuit to give it a little life before reattaching it.
Yes, it should work! If you’re skilled enough to do this, why not just replace the USB-C port instead? That could be a more straightforward fix if you're up for it.
Soldering something like that can be tricky. I’m much better at cutting leads and checking voltages than I am at surface mount repairs.
I get that! Just suggesting an option. But if you feel more confident with your current plan, then go for it!
Many Ulefone models support wireless charging, so if yours does, try that first! Just a heads-up: the batteries typically have a Battery Management System (BMS) that handles safety checks. If your setup doesn’t communicate properly, it might not turn on. The BMS needs to send information to the phone for it to work correctly.
Mine is an older model, and I doubt it has wireless charging, but I'll check once I have it in hand.
Good point! Would that info be on the battery leads, or is there circuitry inside the battery that needs to be connected?
It would be helpful to specify your device. Connecting directly to a power supply isn’t a big deal, but it can lead to problems depending on the device model. Do you have soldering experience? The simplest way could be to cut the BMS from the battery and solder the connections directly to it, which often works for older devices but might not for newer ones.
What's the backup plan if that doesn't work? Check if it has wireless charging capability because that could be a better option.