For most preheating batteries on market, the same preheating and Voltage Variable IC design is currently used, including L0 battery, amigo liberty max battery350mAh VV battery, and others.
The following content describes the specific usage and LED lighting display meaning:
Button LED light indication:
Press two clicks to preheat and hold for 15s
Press one click to stop preheating
Press three clicks on the Voltage Variable
Press five clicks to turn ON/OFF


  1. admin
    April 18, 2021

    This is exactly what i was looking for, thank you so much for these tutorials

  2. Elicia
    April 18, 2021

    What a nice article. It keeps me reading more and more!


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