DIY Lithium Ion E-Bike Battery Pack from 18650 Laptop Batteries



DIY Lithium Ion E-Bike Battery Pack from 18650 Laptop Batteries

How to build a lithium ion electric bike battery pack from recovered used laptop batteries. Save hundreds of dollars by salvaging 18650 li-ion cells from used or even dead laptop batteries bought off eBay.

My pack is 24 volt 20AH which should hopefully provide a 30-45 mile range per charge on my ebike (and cost less than $150 dollars). In the video I show you how to calculate the capacity, then wire and test the completed battery.

UPDATE: The battery had a total capacity of 19aH. The groups of cells were slightly out of balance (3.3v, 2.5v, 2.9v, 2.5v, 3.1v, 2.9v) so I could rearrange some cells and get a few extra miles, but I’m happy enough with the results.

Don’t Throw That Microwave Away!

Rinoa Super-Genius:

Help us make these videos:

Sign up for monthly income, expenses, and net worth reports!

Check out our blog:

Follow us:

Product Links:

7 Pin Balance Connector: 2x 18650 Charger: Battery Spacers: iMax B6 Charger:


Like it? Share with your friends!

100kSHARES
0

Leave a Reply

Your email address will not be published. Required fields are marked *

log in

reset password

Back to
log in