![power supply - Can I use multiple 18650 batteries in parallel with a standard MicroUSB 3.7V charger board? - Electrical Engineering Stack Exchange power supply - Can I use multiple 18650 batteries in parallel with a standard MicroUSB 3.7V charger board? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/RAH0c.png)
power supply - Can I use multiple 18650 batteries in parallel with a standard MicroUSB 3.7V charger board? - Electrical Engineering Stack Exchange
![power supply - Different ways to wire parallel-series battery pack - Electrical Engineering Stack Exchange power supply - Different ways to wire parallel-series battery pack - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/rzvjr.png)
power supply - Different ways to wire parallel-series battery pack - Electrical Engineering Stack Exchange
![Amazon.com: 18650 Battery Case Holder, 3 Pcs 4 Slots x 3.7V 14.8 Volt DIY Battery Storage Box, in Parallel Black Plastic Batteries Case for 4 x 18650 Ltvystore : Electronics Amazon.com: 18650 Battery Case Holder, 3 Pcs 4 Slots x 3.7V 14.8 Volt DIY Battery Storage Box, in Parallel Black Plastic Batteries Case for 4 x 18650 Ltvystore : Electronics](https://m.media-amazon.com/images/I/619PlIzd9mL._AC_UF894,1000_QL80_.jpg)