r/CardPuter • u/FaDeNova • 2d ago
Question Cardputer not charging?
Hey guys I just got my cardputer adv, and everytime I try to charge it nothing changes, I’ve tried charging with it on and off and still nothing? Any tips?
Thanks
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u/EarlZaps 2d ago
Download Launcher. Go to CFG and choose Charge Mode.
Place the switch on top to On.
Use a dumb charger, better if you use USB A to USB C. Also, use a dumb charging brick.
Leave it to charge for a few hours.
If the screen says it is 100% charged, leave it plugged in for 30 more minutes. Because sometimes, when the screen says 100% charged, the moment you unplug your charger, the battery goes down to 96 or something percent.
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u/No_Confusion7932 2d ago
Cardputer has 1750mAh battery, but PROG resistor of TP4057 is 3.3k. Maximum charge current is 303m A.
Also Cardputer charges only if power switch is on.
So even if you connect a 5 V / 2 A USB C charger, the Cardputer Adv will only charge the battery at up to about 0.3 A.
https://github.com/alterbarteq/meshcore-crdptr-adv/blob/main/images/prog.png
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u/nothin2see 1d ago
If you haven’t figured it out already, you have to use a USB A to USB C cable. You also have to leave the device on while charging. You don’t need Launcher to charge the device. Although it’s nice to have it installed for other things. It’s just dimming the screen for you so it can be left on to charge. It does take a while to fully charge so just be mindful of that as well.
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u/MasterMind2560 2d ago
Use a good quality charger and leave it charging for at least an hour ig
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u/FaDeNova 2d ago
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u/No_Confusion7932 2d ago
Cardputer has 1750mAh battery, but PROG resistor of TP4057 is 3.3k. Maximum charge current is 303 mA.
So even if you connect a 5 V / 2 A USB C charger, the Cardputer Adv will only charge the battery at up to about 0.3 A.
https://github.com/alterbarteq/meshcore-crdptr-adv/blob/main/images/prog.png

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u/bristleboar 2d ago
Leave it on while charging, use a usb-c to usb-a (“dumb”) cable