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transferx 13/02/2020
I have modified it to work with a li-ion battery with mt3608 step-up converter and tp4056 usb li-ion charger. Also, the battery itself has a protection module. Now, it can also output on 9v dc, so I can use it to power other devices. Seems to work without problem. I have not removed R30 and did not use the switch, instead, I have connected a switch directly to the output of the battery.
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コメント (10)
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  • Samuel I've just ordered the parts to do the same with mine. Is yours still running ok?

    返信 01/03/2020
  • planiphysic It's a really intelligent idea and a clean work.

    返信 07/03/2020
  • BG112233502 so cool

    返信 10/09/2020
  • Alexandre Good ideas!

    返信 01/10/2020
  • Doctorzorro May I ask what battery you used? Was the protection circuit already in it or is that a separate module also?

    返信 12/10/2020
  • DagDerniT You're AMAZING 👏 💕

    返信 23/10/2020
  • REXX5000 what dimensions are the battery you are using? or where did you pull it out of??

    返信 14/01/2021
  • TonBG248126253 Congratulations to add a battery to a portable device. I ordered one, looked at the voltage input diagram, sequence is connector - diode - switch - LM1117 fixed at 3.3 volts. So, the diode drops 0.6 volts and the LM1117 has a dropout of 0.6 volts, which makes me believe that 4.5 volts is the minimum input voltage, if you don't bypass the 1N4007 diode.

    返信 24/01/2021
  • REXX5000 @Doctorzorro it has over voltage protection built on the battery but he's using a TP4046 li-ion battery charger and protection. they are bloody brilliant little modules. the every protection you need for lithium batteries. plus you can change the input current by changing the resistor R3 in the board. plus if you parallel them up over multiple batteries they can be used as BMS(BATTERY MANAGEMENT SYSTEM). HOPE THIS HELPS YPU AND OTHER WHO READ IT. GOD BLESS AND KEEP YOU CLOSE MY FRIEND. 🙏🏼

    返信 10/11/2021
  • REXX5000 @TonBG248126253 nice observation and your right about the voltage drops.

    返信 10/11/2021
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