Portable Power Bank 18650 Lithium Batteries power pack. 1X 4X.
- Soldering connecting wires between cells are required. The only first cell is wired.
- You can choose to arrange individual cells according to your needs as follows:
- All four cells in a parallel configuration to get 3.7V of the high capacity power pack.
- In pairs in series of two (7.4V).
- All four cells in series for 14.8V
Please note: You will need some wire to make those connections (NOT INCLUDED)