• Based on old version, but added battery protection IC DW01+8205, over voltage, over current double protection.
  • Support output 4.2V to use and charging battery in the same safely.
  • Output to load port on right bottom, charge to battery port on right top.
  • Micro USB charge port, two LED red indicator
    • standby – top right
    • charging – top left
  • Back side XH1.25 2pins (old version is XH2.54) connector for battery, this is not soldered as a option.
  • Input voltage: 5V, charge input better can provide over 1A current, otherwise not good performance.
  • Default charge current is set to 360m, resistor 3.3K.
  • Charge cut-off voltage: 4.2V ± 1%
  • Battery with protections pins B+ ~ B-/PT.
  • Maximum charge current: 1000mA
  • Battery discharge protection over voltage: 2.5V
  • Battery overcurrent protection current: 3A

Updated R4 Version:

  • Fixed over-charge bug mentioned by customer. Thanks a lot for the review!
  • USB port changed to type-C.
  • Add NTC resistor temperature sensing socket, you can remove 0R resistor and add NTC sensor to prevent high temperature risk.

More notice for charge please see on this page.

Additional information

Weight 0.01 kg

1 review for TP4056 Lithium Battery Charger R4

  1. Andreas Müller (verified owner)

    The board is EXACTLY what is written in the description: there is added an overcurrent and overdischarge protection.
    Explanation: The protection unit, consisting of DW01+FS8205, is connected to the charging unit (TP4056) in such a way that only the discharge protection of the DW01 is active.
    There are other Layouts around using the full capability of the DW01, i.e. overcharge, overdischarge and overcurrent protection.
    I have modified my two boards to have the full capability and the work very well.

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