Here's how to build a powerbank with an old laptop battery.

Here's how to build a power bank with an old laptop battery.

step 01

remove the battery from your old laptop and take off the cells from battery.

step 02

check the Cells using a multi meter

step 03

buy these things from your electronic shop

1. 7805 IC
2. switch
3. wire (Good Ampere)
4. usb port
5. Good Heat sink for 7805 IC

step 04

use this diagram to solder them correctly. You must use good heat sink to reduce the heat of 7805 IC

step 05

use good casing to complete your powerbank.


More

01. Use this Diagram to Use more batteries to increase your charging time.

02. If charging slowly or if you want to more ampere to charge you can use this diagram. 

03. But in this diagram you can find some error. there is no way to charge the power bank. if you intrested to know how to charge this power bank; comment below your e-mail Address or Whatsapp Number. I'll Contact you. Thank you..!



*** You are solely responsible for these activities and I am not responsible for any wrongdoing or damage to you or property.