Plastic Li-ion Tool Case DIY 12V 3 Series 7 Parallel Li-ion Battery Case Holder Box for 18650 Powerwall Battery Pack Led Lights Easy power options via USB

Easy power options via USB or external adapter

Does the module above marked GND (input)

Rectification method

The higher the voltage

Plastic Li-ion Tool Case DIY 12V 3 Series 7 Parallel Li-ion Battery Case Holder Box for 18650 Powerwall Battery Pack Led Lights Easy power options via USBPlastic Li ion Tool Case DIY 12V 3 Series 7 Parallel Li ion Battery Case Holder Box for 18650 Powerwall Battery Pack Specifications: Condition: Brand New Material: Plastic Internal dimensions: 146*60*80mm(Length*Width*Height) Outside dimensions: 151*65*97mm(Length*Width*Height) Holder dimensions: 144. 5*58*8mm(Length*Width*Height) Optional Color: Green Notes: Other accessories demo in the picture is not included. Due to manual measurement, please