DIY Power Bank Case

thingiverse

I designed my own High Capacity Power Bank using 3 powerful 6,000 mah 18650 li-ion batteries with a combined capacity of 18,000 mah. A USB and micro USB board helped charge the batteries and power up my phone on the go. To house these components, I created a custom case that accommodates three 3.7v batteries, leaving room for wiring and the circuit board. The compact design features easy access to the batteries and board if needed. You might need to sand out the USB port hole slightly, depending on its size, but this is unlikely due to standardization. I also omitted a wire hole from the battery to USB connection, so you'll have to cut it out yourself. I built this Power Bank as a fun project during my high school years and hope you enjoy using it. If you appreciate my work, consider leaving a tip - every little bit helps me save for college expenses.