I had been wanting to get a power bank for a while. When I saw there were so many different models, I thought, “Why don’t I make one myself?” A quick search on Google showed me that there’s no need for soldering, as the ready-made board (or module) is available.
The board shown in the pictures below has a micro-USB input for charging the power bank’s battery and a USB output for charging phones and other devices.
I connected two batteries, each with a 1450mAh capacity, in parallel to increase the overall battery capacity.
Before that, I used double-sided tape to connect the batteries to prevent them from separating.
Here, I connected the batteries to the module.
I added a switch to cut off the battery’s current to the module, because the issue with this module is that when no current is being drawn, the blue light (indicating current flow) remains dimly lit. However, it’s not a big deal, and you can use other modules if needed. The output of this module is 1A.
Here’s a picture of the power bank I made.
The End
If you have any questions or comments, feel free to post them in the comments section.