TP4056 USB Micro Lithium Battery Charger Module 1A With Battery Protection

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5V 1A Type Micro USB 18650 Lithium Battery Charging Board Charger Module + Protection Dual Functions TP4056

  • This is a miniature battery charger based on the TP4056 integrated circuit. It is ideal for adding an embedded battery charger to your new project.
  • Charge Li-Ion batteries from onboard Type Micro USB connector from USB or external +5V source.
  • With a Micro USB onboard connector, you can directly connect to a computer USB port for battery charging. If USB is not available you can use an external source voltage at IN+/IN- pads great for DIY projects


  • Chipset: TP4056
  • Input voltage: 4.5V~5.5V
  • Fully charged voltage: 4.2V
  • Charging current: 1A adjustable (Set originally to 1A)
  • Working temperature: -10'C~85'C
  • Charging method: Linear charging 1%
  • Charging precision: 1.5%
  • Charging indicator: Red light charging, Green light fully charged
  • Interface: Micro USB
  • Size: 25 x 19 x 10mm.

Safety Notes: 

  1. The ampere meter can only be connected to the 5v input end of the module.
  2. The charging current should be 37% of the battery capacity. If you charge to the battery of 1000mAH, a current of 400mA is enough.
  3. The connection wire should not be too thick.
  4. Make sure the connection points are well-soldered.
  5. If the input voltage is too high, like 5.2v, the current will be less than 1000mA, which is normal. It is a protection function, that auto-subtracts the charging current to avoid burn damage to the chip.
  6. NO Reversal polarity.