Batteries can be dangerous if handled or designed improperly. Nobody wants a fire at home or to lose a board because of a poorly built pack.
This thread is meant to be a collection of safe, reliable battery pack designs, as well as a place to ask questions about building your own or general battery related questions/discussions. Feel free to share progress photos and get feedback on layout, weld quality, or anything else you’re unsure about.
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@Linny, you may already know, but most issues that can come up with those BMSes are just with the Bluetooth modules, so if you’re still having trouble and have another somewhere, you could try swapping the modules out. You can also buy the Bluetooth modules themselves in some places.
@Linny the BLE on those things won’t show up for discovery if it thinks it’s attached to something already. makes for some weird situations… sometimes quitting the app and restarting clears it. sometimes there’s a second app that’s connected (probably not your case, ,you’d know). sometimes disabling bluetooth and reenabling clears it.
I could have the wrong idea, but for larger P count packs where I’d prefer to charge at 10A-15A it seems like this would help keep the pack better balanced if I’m not leaving the pack plugged in overnight.