Dyson & Sebo Vacuum Cleaner Repair & Advice Forums

Dyson Models => Handheld, Cordless, Stick, Wand & Robotic Dyson Vacuum Cleaners => Topic started by: Bobbych on March 19, 2020, 04:44:36 pm

Title: Looking for scrap Batteries.
Post by: Bobbych on March 19, 2020, 04:44:36 pm

Hi

I'm looking for sources of defective battery packs.

These are recycled by strippingand the battery cells  used to create small solar power banks for rural communities in underdeveloped countries.

Title: Re: Looking for scrap Batteries.
Post by: ryevac on March 20, 2020, 09:08:02 am

How are you involved in this, ?

"create small solar power banks for rural communities in underdeveloped countries."

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 20, 2020, 09:46:34 am

I strip the cells out of the batteries. Test them then ship them to a collegue who is in the military and is helping NGOs to help rural commuities. Mostly  the BMS in the Pack is faulty so all the Cells(6) are fine. Now and again I found 1 bad cell which kills the Pack but the other 5 cells are fine.

Title: Re: Looking for scrap Batteries.
Post by: MVacs on March 20, 2020, 04:47:01 pm

If I know you want them ongoing, I'm happy to save them up and send you them in say 20's or 25s if you cover the £10 P&P cost. Better than them going to landfill.

Title: Re: Looking for scrap Batteries.
Post by: ryevac on March 21, 2020, 11:34:00 pm

 :thumbsup:

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 22, 2020, 12:53:56 am

Yes I would gladly take any packs you have. My colleague will cover the P+P so please send as many as you can for the £10. Hopefully and of tour fellow Vac repair counterparts can do the same. As you say better than land fill and going to a good cause.

Title: Re: Looking for scrap Batteries.
Post by: Parwaz7862 on March 22, 2020, 02:56:45 am

Quote from: Bobbych on March 20, 2020, 09:46:34 am

I strip the cells out of the batteries. Test them then ship them to a collegue who is in the military and is helping NGOs to help rural commuities. Mostly  the BMS in the Pack is faulty so all the Cells(6) are fine. Now and again I found 1 bad cell which kills the Pack but the other 5 cells are fine.

What are BMS?

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 22, 2020, 03:47:56 am

Battery Management System. It's a circuit board that controls the rate and level of charge and discharge. Every rechargeable device has one.

Title: Re: Looking for scrap Batteries.
Post by: Parwaz7862 on March 22, 2020, 05:16:53 pm

That's interesting, I always thought it was the batteries!

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 22, 2020, 05:24:11 pm

I have stripped more that 300 dyson batteries. That is 1800  cells and only binned about 10. All others were useful. They did not have full original capacity but about 80% which can be used.

Title: Re: Looking for scrap Batteries.
Post by: ryevac on March 22, 2020, 09:52:48 pm

Yes - i too have only ever had one cell at fault on a stripped battery.
I and the other lads use the cells on our fenix cree fishing lamps, fenix use the cells with no pronounced nipples on the + terminal.
Best i have found so far are 2200ma samsung cells.

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 22, 2020, 11:49:10 pm

The V8 packs have 21700 cells, not 18650. There are 3000mAh.

Title: Re: Looking for scrap Batteries.
Post by: Parwaz7862 on March 23, 2020, 02:09:27 am

So would the vacuum run if you disable the BMS and just have the cells connected to the vacuum?

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on March 23, 2020, 06:51:52 am

NO NO & NO again. You should never use litium batteries without a BMS. The BMS prevents over charging and over discharging. If you over charge cells they can explode and catch fire.

Title: Re: Looking for scrap Batteries.
Post by: Parwaz7862 on March 23, 2020, 04:08:26 pm

Got it 👍🏽

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on November 14, 2020, 06:32:44 pm

Hi

I'm looking for sources of defective battery packs.

These are recycled by strippingand the battery cells  used to create small solar power banks for rural communities in underdeveloped countries.

Title: Re: Looking for scrap Batteries.
Post by: Bobbych on December 14, 2020, 10:07:44 pm

Hi all. Still looking for any unwanted  dyson batteries. Get in touch even if they are dead.

Title: Re: Looking for scrap Batteries.
Post by: MVacs on December 15, 2020, 12:50:13 pm

We've 68 ready, I'll send you an email.