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- Short press the button to show the current battery level.
- With the battery level showing, press and hold the button for 2 seconds to enter the setting status: mode light (battery type) flashes, string number light is on; short press the button to select the battery type.
- After confirming the battery type, press and hold the button for 2 seconds to enter the serial number/voltage setting (mode light is on, serial number/voltage light is flashing)
- Short press the button to set the string number or voltage of the battery; please refer to the above table to set the options.
- After setting, press and hold the button for 2 seconds to save the data and return to the power status (or wait for 5 seconds to return automatically)
- In the setting state, if the button is not operated within 5 seconds, it will automatically return to the normal display of power.
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