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OLD LIPOS


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I have a few old lipos that have puffed up and not holding charge.What is the safest way of disposing of them?recycle bin or are there any specialist disposal places to take them to?Anybody got any tips?Dont want to cause any chemical fires at a recycling plant!

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When any lipo has reached the end of it's useful life they are discharged overnight, outdoors, using a car headlight bulb to which I've soldered 4mm gold connectors on short fly leads. With the pack dead, the voltage is checked through the balance leads, before the leads are clipped close to the case, have a small wrap of tape or a cm of heatshrink over their ends. The inert lipo then goes to the battery box at the municipal recycling centre and the leads go into my scrap wire drawer for recycling of the wire and connectors.

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Chris, I'm pretty certain that there's a dedicated battery disposal area at Bebside tip. You don't need to fully discharge your battery but best to cut off each main + balance wire - one at a time.   

 

PS If you do want to discharge it first - plug the battery into a model & run the motor at full throttle until LV cut then re-start at low throttle & repeat.  

Edited by PatMc
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2 hours ago, chris collis said:

Many thanks everyone, I hadn’t thought of any of the suggestions made.All I’ve got to do now is find a headlight bulb.

Doesn't have to be an expensive headlight bulb Chris, any old 12v -24v bulb will do the job.

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2 hours ago, chris collis said:

Hi Pat, I was thinking about Bebside for their disposal.Would they take old receiver Nimhs as well?

Hi Chris, I think I've dumped some there in the past but I've also left old Nimhs & hearing aid batteries in supermarket disposal bins. I believe they are obliged to provide this facility as they sell these types of batteries.

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Took mine to local tip today. They were discharged and wires crossed, asked if they were OK to go into battery recycling and without looking or checking he said go ahead

Coincidentally as I got there they had a fire drill, they might need it!

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Hi Stuart - that soaking in salted water is a bad idea, since it can result in corrosion of the terminal tabs on the lipos before they are actually discharged, leaving you with no means of fully discharging them. It's long been superseded as an appropriate method for safe disposal. I'm surprised that 4-Max would recommend such a procedure.

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Leccyflyer

 

I’m following advice from 4Max.  I soak them for about 4 weeks-seem very dead by then. 
 

I don’t like Lipos at all and this seems a good way to kill them off. 
 

Edited by Stuart Z
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Sorry, but that's terrible advice and  was recognised as terrible advice some years ago.  Check out the BMFA advice mentioned earlier in this thread which explicitly states not to put lipos in salt water to discharge, it is ineffective and unecessary.

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On reflection of all the various advice and thoughts given, I think I am going to go down the road of discharging with a headlight bulb and disposing safely at the local recycling tip.don’t want to be responsible for any lithium fires! I have seen the videos for batteries catching fire in aircraft at flying fields!Just as an aside, I wonder how spent lithium batteries are going to be dealt with in electric vehicles when they come to the end of their lives?

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35 minutes ago, chris collis said:

On reflection of all the various advice and thoughts given, I think I am going to go down the road of discharging with a headlight bulb and disposing safely at the local recycling tip.don’t want to be responsible for any lithium fires! I have seen the videos for batteries catching fire in aircraft at flying fields!Just as an aside, I wonder how spent lithium batteries are going to be dealt with in electric vehicles when they come to the end of their lives?

Any car bulb 12 or 24 will do doesnt have to be a headlamp bulb . Indicator bulbs work fine and we usually have those lying around .

I used to just dunk them into a bucket of salty water overnight but was told that it leaches lithium into the water and that has its own issues with disposal; but it does completely discharge them .

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1 hour ago, Martin Harris - Moderator said:

They will be recycled or reused for less demanding applications.

I wonder if there will be a charge for this in the future?

For example our local tip now charges £7.00 for a tyre!

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 Four cell lipos which have a duff cell  cell  are near enough to 12 volts so can be discharged  with a bulb. I use  such old lipos as a power source for  LED day running lights on my old Triumph then dispose when flat. Nearly all vehicles now have these LEDs so I feel more comfortable that I can be seen by car drivers, always a worry on a bike.  I once put a lipo in a bucket of water then pierced it . It boiled away for a while under water, showing how difficult  to extinguish they are. Just the once!

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