Beginners Guide to Processing 18650 Cells | Cell Database


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What to do with all the 18650 that are about 500 mAH
#1
Question 
After sorting through my 18650 batteries, I have a lot that end up as dead or around 500 mAH.  Is there anything we can use the 500 mAH 18650s for? I don't want them to go to waste. Is there any benefit to adding them to my wall build in their own 80p rack? 

Any Ideas?

Thanks,
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#2
Flashlights and toys that have leds and sounds (motors probably not so much)
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#3
I sort them in to boxes of similar cells and put them on eBay as an auction.
Wattsup likes this post
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#4
(07-18-2017, 10:59 PM)Happy Camper Homesteader Wrote:  Is there any benefit to adding them to my wall build in their own 80p rack? 

Yes absolutely (if you enjoy soldering) .... If they can hold 100mAHrs and don't self discharge I would use them , but keep them in a separate pack
Tango47 likes this post
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#5
Personally, I would just use them with a low voltage solar panel along with a low wattage LED(1W) for outside/emergency light.
Korishan likes this post
The power of lithium ion is in our hands!
We'll show them what we're made of!
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#6
Yeah I have the same issue, I put anything less than 1000mah aside because I have no real use for them. I have quite a few and No real use for them.
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#7
Everything below 500 here is thrown back to the recycler
up to 800 for just experiements and blow them up. 800-1300 simple toys. 1300-1800 atv and other things. 1800 and up goes to powerwall like stuff.
Korishan likes this post
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#8
I'm using some of my low-cap cells here, instead of two AA batteries Big Grin . Have about ten of those in the house, just added a battery holder and a voltage regulator. With a 1000mAh cell, it works about 6 weeks:

IronSky, BlueSwordM, Korishan And 1 others like this post

Cells tested: 4238 (overall: 8077 Ah, average: 1906 mAh)
Cells in production: 2240 (overall: 4704 Ah, average: 2100 mAh)
Powerwall config: 7s320p, 672 Ah, 16 kWh
What's left: my current grid consumption

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#9
(07-18-2017, 11:19 PM)mike Wrote: I sort them in to boxes of similar cells and put them on eBay as an auction.
Whats the going rate cause id need monies for a charge controller [emoji3]
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#10
(07-20-2017, 10:02 PM)AveRageJoe Wrote:
(07-18-2017, 11:19 PM)mike Wrote: I sort them in to boxes of similar cells and put them on eBay as an auction.
Whats the going rate cause id need monies for a charge controller [emoji3]

They go much higher than you would think. Here's an example. I'm guessing it will go to about $180-$200 by the end of the auction.
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