RUNCCI-YUN 5Pcs TP4057 Type-C USB 3.7 V 1A 18650 Lithium Battery Charger Module Li-ion Charging Board with Protection Function

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Product description

  • High-efficiency charging protection The 4057 chip supports constant current constant voltage charging, a maximum charging current of 1 A, and overtemperature protection for safe and efficient charging.
  • Compatible with various lithium batteries Compatible with single-cell 3.7 V lithium batteries (e.g., 18650, polymer batteries, etc.) with a charge cut-off voltage of 4.2 V. Suitable for all types of 3.7 V lithium batteries to reliably power your devices.
  • Restriction on battery parallel connection Only parallel connection is possible; avoid series connection.
  • Scope of delivery 5 TP4057 1A lithium battery charging protection boards (with protection).

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