Hi friend let me show you how u make your own power bank, I made this power bank for my samsung galaxy y its battery capacity is 2400mah, so i used a single 18650 battery with capacity 2600mah, This power bank can charge my phone completely one time. If u want to increase the capacity just add batteries parallel.
parts:
1. 18650 li-ion battery 3.7v 2600mah.2. TP4056.
3. 0.9,3v to 5v converter module.
4. single pole single through switch.
Circuit diagram:
- Hope you enjoyed this article, thank you friends
- Leave your doubts in the comment section.
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