R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Radio and Electronics (https://www.rctech.net/forum/radio-electronics-137/)
-   -   Disposing of old Lipos? (https://www.rctech.net/forum/radio-electronics/1001416-disposing-old-lipos.html)

Kyosho Joe 10-29-2017 09:41 PM

Disposing of old Lipos?
 
Just wondering what everyone does to dispose of their old lips batteries? Every great once in a while I will get a battery that will no long take a charge and I know that its been damage internally and I now have a ticking time bomb for a house fire on my hands. I don't like to just throw them in the trash because I don't want to set the garbageman's truck on fire. At least not when it still on my street. I know you are supposed to discharge them and then place them in water or something but I don't have time for that. I usually take them out in my back yard and shoot them with my .22 caliber S&W revolver. let them fiz and fume and then I put them in the trash... I use 22 shorts so I don't disturb my neibours to much. :sneaky: LOL . Seriously question though. I'm wondering what does everyone do to neutralize these when they have gone bad....:D

gigaplex 10-29-2017 10:53 PM

Try asking your local hobby shop if they've got a recycling program. I think some areas legally need to offer them.

Kyosho Joe 10-29-2017 11:30 PM

I just wish I had a local hobby shop! I live in central Pennsylvania. And for 75% of the people around here the main hobbies are Heroine and Methamfetimein. Thus the local economy has no room left for normal people hobbies....

Darkgenerals 10-30-2017 06:07 AM

Best buy will accept old lipo's and electronic devices.

LA-2-AL 10-30-2017 06:49 AM

Both Lowes and Best Buy near me have recycle bins for "rechargeable batteres",, they don't say no lipos,,, so I drop them off there

peter george 10-30-2017 07:33 AM


Originally Posted by LA-2-AL (Post 15065208)
Both Lowes and Best Buy near me have recycle bins for "rechargeable batteres",, they don't say no lipos,,, so I drop them off there

I do the same

jkaetz 10-30-2017 11:26 AM


Originally Posted by Kyosho Joe (Post 15065023)
Just wondering what everyone does to dispose of their old lips batteries? Every great once in a while I will get a battery that will no long take a charge and I know that its been damage internally and I now have a ticking time bomb for a house fire on my hands. I don't like to just throw them in the trash because I don't want to set the garbageman's truck on fire. At least not when it still on my street. I know you are supposed to discharge them and then place them in water or something but I don't have time for that. I usually take them out in my back yard and shoot them with my .22 caliber S&W revolver. let them fiz and fume and then I put them in the trash... I use 22 shorts so I don't disturb my neibours to much. :sneaky: LOL . Seriously question though. I'm wondering what does everyone do to neutralize these when they have gone bad....:D

If it is internally damaged and you cannot even connect a 12v automotive light bulb to drain the remaining voltage than you should use the salt water as it will do the job. To be clear, the salt water's purpose is only to slowly drain the remaining voltage from the cells. If you are careful, you can also separate the cells and try to drain each one separately with a light blub. Once the voltage is drained to zero, they can simply be tossed.

racer1812 10-30-2017 03:46 PM

The salt water method is said to be a myth. The tabs on the cells will disintegrate before the pack voltage reaches zero.

sakadachi 10-30-2017 07:50 PM

I let mine drain all the way on the porch sidewalk in a metal cooking pot using an old bulb discharger I made. Once at zero volts, just short out the leads by connecting the positive and negative leads. Then toss in the trash once completely cool.

nitro_mt_racer 10-30-2017 08:25 PM

Burning barrel

jkaetz 10-31-2017 07:36 AM


Originally Posted by racer1812 (Post 15065739)
The salt water method is said to be a myth. The tabs on the cells will disintegrate before the pack voltage reaches zero.

I could see the tabs disintegrating, but would also expect the salt water to permeate the cell and create a drain even without the tabs. I suppose someone would have to test to confirm or deny the theory. Personally the light bulb method works just fine.

jasburrito 10-31-2017 07:55 AM

I like to charge um up and shoot with my 22. If they do not caught on fire I stomp them with my foot to try to get um to burn. The newer lipos have anti fire materials added that do not burn as well as older generations of lipos.

Andy Koback 10-31-2017 08:17 AM

My method...discharge down to 3.0 volts per cell, then drain down to zero w/tailight bulbs (2) and then soak in salt water solution for 2 weeks and then garbage them.

Eric Bryant 11-01-2017 11:02 AM

If you're draining the cells below 3V or so, make sure that you don't ever accidentally attempt to recharge the pack!

Honestly, once the cells are discharged to 3V or thereabouts, there is very little electrical energy left in the pack, and I'm unconvinced that it's necessary to drain it any further.

racer1812 11-01-2017 11:17 AM


Originally Posted by jkaetz (Post 15066258)
I could see the tabs disintegrating, but would also expect the salt water to permeate the cell and create a drain even without the tabs. I suppose someone would have to test to confirm or deny the theory. Personally the light bulb method works just fine.

I agree. My comment comes from the fact that one could put the pack in salt water, have the tabs degrade and the pack read zero voltage yet still be fairly charged.

I say bring that puffy bugger to BestBuy and drop it in their box recycle box and let them deal with it..lol


All times are GMT -7. It is currently 01:42 AM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.