Fastsaw Pack of 2 Single Compartment 18650 Battery Protector for ESP32 Li-ion Battery Holder, Supports Micro USB 5V/2A 3V/1A Output V3 Battery Protection with 2 Cables
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Product description
- The battery voltage normally works between 3.2V and 4.2V. The cells do not need to be connected in series. The series connection will increase the voltage. If you need to increase the battery capacity, you can connect it in parallel.
- The 18650 mobile power module supports USB output or expansion port output, supports 5V 2A and 3V 1A output, and has conversion efficiency up to 95%.
- The mobile power module is equipped with a built-in lithium battery protection circuit for protection against over-current, over-voltage, undervoltage and over-temperature.
- 5-level LED light shows the battery level. By default, it is always working and needs to be turned off manually.
- If you need to switch to non-working auto shutdown mode, just turn the switch to the non-working auto shutdown mode.
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