How to Test 18650 Cells/Batteries Rewrap And Make a Power Bank With 20000mAh

Hi in this video I showing how I test 18650 cells I've salvaged from old laptop batteries that are no longer working. I test the 18650 cells in oder to sort out the good ones from the bad one. I also show how I make a power bank with 20000mAh using the good 18650 cell I end up with... Thank you for watching...

18650 Battery Charger PCB Module Board
DIY Power Bank Case 4pcs 18650
DIY Portable Power Bank Case 8x18650

Here's the link to how to make the charger I use in the video.

[secuestrador]

a very clean job congratulations thanks for the ideas

[servansosolis]

What kind of metal did you use for the strip that links them all together?

[AndersJackson]

Pro tip.
Solder/pretin the metal band together BEFORE solder them to the batteries. That way, you don't heat up the batteries more then needed. Also use flux on the batteries, so you get the solder flow better when soldering to the batteries. Also let the batteries cool down between soldering the batteries end and then solder the metal bands to them.
Except for that, great video.

[Alaa.hseen]

Excellent job but I need links to buy the electronic parts that you use

[hayzersolar]

isn't soldering bad for the batteries

[DaProductionsDrawings]

Now to add a wind turbine to recharge them

[miah]

That has a capacity of 12Ah tops. Could have made it even easier with faster charging and less heat if you went with a 2s4p config.

[denniszdrenka]

Theo best cell on video have 1652mah 8x 1652 isn't 20000mah

[prashanthlastplayer]

Go to amazon purchage a powerbank dont try to play with current