The module supports two main working modes, which can be toggled by a long press on the "SET" button. This mode protects batteries from overcharging. You set the lower limit ( dn ) and upper limit ( UP ).
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Short press to turn the relay ON or OFF manually. Long press to enter the low-power sleep mode setup. The module supports two main working modes, which
: Short press the DOWN button to manually enable or disable the relay. xycd60 manual link