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› 18650's, making your own battery pack
DennisH

Senior Heliman

Baton Rouge Louisiana USA

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Has anyone ever used the 18650 batteries to construct your own 22.2v battery pack?

I think it would an interesting project.

Just seeing if there are any negatives.

Dennis

10-14-2016 05:10 PM
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wjvail

Key Veteran

Meridian, Mississippi

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Hmmm... I use 18650 as receiver packs on many of my models. Of course I only solder up 8.2 volt packs. While they are great receiver packs, I would be afraid to use them for anything requiring much more current draw. LiIon batteries often have comparatively high internal resistance and comparatively low C ratings.

Interesting question but I'd have to study the question more before using them at higher voltages and in higher demand applications.

Let us know if you try it.

Bill

"Well, Nothing bad can happen now."

10-15-2016 10:35 AM
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DennisH

Senior Heliman

Baton Rouge Louisiana USA

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Thanks Bill,

All I have is time on my hands. I am/was certified in Hybirds & Electric automobiles. They have very elaborate systems. The Tesla packs contain about 1,100 18650 batteries and they use "every" bit of available space for these batteries. They have always fascinated me.

I have a new DVOM on the way as my current one won't measure mAh's over 5000mAh's. Interesting for a tool that will measure voltage up to 600v's, but not mAh's over 5k.

The key will be mAh's, will I be able to obtain <5000mAh's? If it does work out, I am going to try a pack in my 450.

I may even experiment with a few bad LiPo batteries. Most that are bad only have one cell that's the problem. We will see.

I will let you know,
Dennis

PS: I AM NOT ADVISING or ENCOURAGING ANYONE TO EXPERIMENT OR WORK ON THESE Lion/LiPo BATTERIES. I am just discussing MY project plus seeing if anyone has done likewise. There may be someone out there that just might STOP me from experimenting.

I have a family member who works for a Worldwide company who is telling me their experimenting with batteries that will put LiPo's to shame. I can't wait to see if it works out.

10-16-2016 07:26 AM
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Dingo07

Senior Heliman

Newport Coast, CA - USA

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Any update...?

12-19-2016 07:25 AM
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DennisH

Senior Heliman

Baton Rouge Louisiana USA

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Not really, the cost of the 18650's almost make it cost prohibitive. It can easily be done.

I have people donating their old LiPo's, and I am rebuilding these. So far it working great. Just remember, you have to be super careful.

I don't recommend anyone else to rebuild a LiPo Battery.

I did take apart several old tool battery packs, but it was hard to find good ones out of the bunch.

Dennis

12-19-2016 11:23 AM
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Rojoalfa

Senior Heliman

Punta de Mata, Monagas-Venezuela

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/
/

Doing New packs from New lithium cell, I dont recomended. It is expensive.

Doing repair... It is better.

Most of the time, a battery pack fail because just one or two cells, so... It is a matter to replace the bad cells.

Laptops, hand tools... The repair is always cheaper than buying a New pack.

/

Saludos cordiales,

12-19-2016 12:24 PM
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DennisH

Senior Heliman

Baton Rouge Louisiana USA

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Yes, that's why I gave up on new.

I just repair the old ones, and so far it's working out great.

I have to triple check myself, especially when pulling out the soldering iron.

12-19-2016 01:12 PM
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