When measuring higher voltages (like a battery) with the ESP32 ADC, you typically use a voltage divider to scale down the voltage to a range the ADC can handle. A voltage divider uses two resistors ...
Manufacturer description: The EN-EL8 is a rechargeable Li-ion battery that provides 3.7v and 730 mAh of power to the following Nikon COOLPIX digital cameras: S50, S50c, S51 and S51c.
The circuit is capable of safely charging a 3.7V Li-ion battery and includes protection mechanisms to ensure the longevity and safety of the battery.
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