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Shop / kaisi charge board

USB 18650 Lithium Battery Charging Board with Protection - 20pcs

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$ 5.99   $4.61  
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Category: kaisi charge board

About this item

  • TP4056 is a full-featured charger designed for single-cell lithium-ion batteries, compatible with both USB and adapter power sources.
  • The TP4056 charging module has a fixed output voltage of 4.2V and allows for external adjustment of the charging current using a resistor.
  • Upon disconnection of the input voltage, the TP4056 enters a low-power mode to minimize battery leakage, reducing current to below 2uA. It can also be switched off completely when not in use, with power consumption dropping to 55uA.
  • The 18650 lithium battery charger board operates at an input voltage of 5V and features over-discharge protection at 2.5V. Proper connection of the positive and negative terminals to the load is crucial.
  • To charge the battery using the board, connect the positive and negative terminals accordingly, then plug in a USB charger. The red LED indicates charging, while the green LED signals full charge.