Goin’Up3750‘, DC Step-Up Converter/Charger for Smartphones

“Goin’Up3750” simply converts DC 3.7V to 5.0V. This is not a charger itself, but is acting like a charger when it is connected to an External Battery Pack. (Power Bank)

It is designed to charge smartphones (including iPhones) by utilizing a 3.7V Li-ion Battery Pack which is normally used as a power source for Power LED lanterns. (Refer to the photos below)


With “Goin’Up3750” & a Battery Pack for LED lanterns, you don’t need to buy any extra 5.0V Battery Pack only for charging your smartphones. It’s because your 3.7V Battery Pack can instantly be transformed into the battery pack for smartphones.

  • Input/Output voltages: DC 3.7V(4.2V max.) / DC 5.0V(5.2V max.)

  • Output current: 1,200mA max.

  • Input/Output connectors: 5.5*2.1mm Power Jack(Male) / USB Type A(Female)

  • Dimension: 4.5*1.0*06” (115*25*15mm)

  • Weight: 20g

  • Color: Black

  • Water Resistance: NO

  • With a 5,200mAh Battery Pack, for example, you can charge your smartphone around 2-3 times


** The converter will permanently be damaged by any higher input voltage than DC 4.2V. **
** Items except the converter are for demonstration only, which are not for sale. **