The onboard charge controller is designed exclusively for 1-cell 3.7V LiPo batteries, limiting the charge current to a maximum of 370mA and charging up to 4.2V. Due to the high charge current, it is not suitable for small batteries.
It does not have features such as over-discharge protection or low voltage cutoff. If necessary, please use a LiPo battery with built-in protection features.
Please also refer to the link below.
‘Charging characteristics of XIAO_nRF52840 and XIAO_ESP32C3’
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