Tutorial how to make a rechargeable power bank form old laptop battery. In laptop battery are used 6 or more li-ion rechargeable batteries - 3.7 volts each.
Used Batteries in this case have capacity less then 3000 mAh so in parallel connection are able to provide about 15000 mAh.
The driver is used from scrap power bank.
- old laptop battery
- Driver - used from old scrap powerbank with lower capacity
- 2 Wires
Detail Video tutorial:
Have a fun and always be careful with li-ion batteries.