this post was submitted on 19 Jan 2025
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Props for having the guts to take a lithium battery apart so you could wire the usb cable to the bms.
I guess it's sort of safe in that the bms would shut itself down if the voltage is too high because it thinks the battery is overcharged, but I still wouldn't recommend using it in this config as I'm sure the usb port can't provide the same amount of current as the original phone battery, so the phone might shut down.
Here's a safer way to do it if you want to run that phone without a battery
I'm not planning to use it for real since I didn't trust it myself and thanks for the link I'll have to try it out later