Dyson DC31 DC34 DC35 DC44 battery disassembly for replacement: Not Worth It. 

Thank you so much for the feedback. Glad it helped.

Most likely it will be a simple matter of charging it up then running the appliance until it runs flat. Then check voltages on the cells. You could then try replacing the worst of the cells, although this would be tough to do, judging by the design. Looking at this excellent video, it would probably be easier to remove all the batteries, and the charging circuit, and replace with new cells plus a 7-way molex plug connected to the positive end of each cell, plus the negative end of the last cell. You could then use a standard balance charger to charge the thing up. Not ideal, as you'd have to charge the battery off the appliance, but it's what I've done with all my lithium cordless drills and it works very well, plus you can choose your own charge rate and use a top notch balance charger which preserves the cells. If you've multiple lithium ion devices, and you adapt them all to molex plugs, you'll be laughing!

@@tasmedic That sounds great! Have you done a video on how to do it??

@@nw8000 Yes, I ought to do that. I've a couple of videos up about other things though. I wonder if you've seen those....?! ;-)

It's highly likely these 18650 cells are low or faulty. These batteries only last about 2 years in the Dyson. In the UK you can buy Samsung 18650 cells from £3.79 each. Get yourself a multimeter and check each cell. But, to remove the cells and install new ones isn't for beginning. The cells need to be spot welded on back.

Thanks man, positive comments are rare on this video haha!

@@TheChug do a video for people then await the keyboard warrior abuse 😀 Stripped down my Bosch Athlet and decided to sell the parts off on ebay.

+ve, -ve, and temperature.

I bought the cheap one and it's still working!

Haha, yeah, well... I know it's not pretty and it sure looks like a novice. Thanks for the comment. It's not worth rebuilding it...

Christian Galipeau seriously, initially thought “here we go. It’s just a matter of patience, this guy had none...” took me two hours to open the case, no matter the use of hairdryer to make the plastic softer... and eventually the cells that I had were slightly too big to fit... it’s really a risky exercise, because you have to weld over the battery and there is really little space. Risk of shorting is real.

haha yeah!

This another example of why women live longer!....eesh!

@@missswish899 haha Miss... Yeah let's see how long I'll live ;)

I really don't know man... sorry... :/

That's great! 😂

All lithium battery packs are spot welded. You can solder, however, be very careful. I have done it plenty of times before, without issue. I scuff up the new battery terminals with a razor or file, then set my soldering iron to MAX heat (550 C), then on the newly scratched up area of the battery hold the iron and apply a gererous amount of solder, without making it flood inside the positive cap!. Do one end of the battery, then move to the next battery, giving them time to cool down before soldering the other end. Remember, be careful! They can explode.

Thanks for the hint!

Wonderful!! 3D printer to the rescue!

Ah... ben de rien!

Great idea!

Nope, just wanted to open it by curiosity!

No do not use these panasonic cells, they can't handle the discharge rate of this device !!!

Carsten Oschlies whats the current draw on the dc59. I use these batteries in my fenix tk75 which i figure pulls a pretty high current also. thanks for the heads up.

It has 100 watt so it consumes up to 33A, as far as I know. You have to divide watt by 3 but don't ask me why.

if its draws 100 watts at 22 volts it would pull 4.5 amps

Happy trying. Dyson builds in expensive Sony VTC4 cells which can handle 30A in long time use. They will do this for a good reason.

Hi did you resolve your issue? Im having the same issue, only measuring 0,05 V across the 3 terminals. Does anyone know how to fix?

@@svankervej the 3 terminals is for communication between the main unit and the battery. You won’t find the output voltage there.

only $80, you can buy the whole vacuum cleaner second hand on local buy swap n sell for under $100

Hahhaa that would have been damn funny.

Man, I already made much more than a brand new Dyson unit with the youtube revenues on this video. It was so much WORTH it making this. So... haha. Next time, don't just buy a new one, tear open your battery and post it on here. Cheers and happy new year 2020 my friend.

Great hint!

Yeah, that's what I did too. I bought a new one on Amazon.

ive done the same and this battery is a bitch to open

Probably! 🤣

OnlineBackupServices yeah, I don't think it's easy to replace those batteries There...

Have you attempted it? The problem is the genuine replacements are very expensive and the cheap aftermarket packs use low quality cells which will die after 1 year. The dyson use us sony VTC4 18650 cells which have high amp 30Amp. The aftermarket chinese ones use any old cells. It may be worthwhile finding a faulty aftermarket battery pack and put in sony vtc4 cells. The aftermaket packs might be easier to take apart and reasemble.

OnlineBackupServices no, I bought a cheap one on Amazon... works great!

Any brand you can recommend. I went throguh so many rubbish fake laptop batteries and all of them let me down. This makes me hesitant about using third party batteries.

OnlineBackupServices I don't really know the brands...I'll try to check it out. I chose the one with the best review.

🤣😂😅

@@TheChug it was actually a very good video-but just very funny 👍👍👍

Maybe next time just drive a bulldozer over the battery 🤣🤣🤣

@@depechem0demusic 😂

@@TheChug You know what-I’m actually going to subscribe to your channel 😉😉

Thanks man, really appreciated.... A real success story! Haha!

I'm not even sure... But was still worth it! 😂

That's what I did haha

Yeah, but opening up the case took 70% of the video haha! :P Thanks!

@@TheChug Chug Galipo totally. U Shall change the title. I missed to watch your video which caused me spend 30 min to saw the cover with powertool.

Thanks, good advice.

I agree here... having a fire though would have made a huge amount of traffic on this video haha

Not if you use a smart charger used with RC batteries..

Haha, yeah I guess you are right... I must be lucky to still be alive!

Yes I am! Tarbanak d'osti de calisse... lol

Sounds like your screwdriver punctured a cell and/or shorted out cells. lots of people strip and rebuild battery packs without destroying them like this. obviously it's not for the reckless or careless.

So...you're at fault. Basically the advice should be don't get you to do this.

Next time don't be stupid and discharge the battery first! It has to have enough energy to explode or catch fire... And work cautiously at safe place!

Hence, another example of why women live longer!....eesh! :)

😂

Haha yeah, obviously, Captain Obvious always succeeds the first time he's trying to woo a lady. Good job! 🤘🏻

Did I say that? Oh, very possible! Haha

Hahahaha yeah, osti de calisse de tabarnak... Fuck that thing is hard to open tabarnak.

Agree Dyson are crap. The handle is designed very poorly and it's a pain to use literally. My battery failed after a year.$600 for a product lifespan is typical of today's electronics. The circuit board you see in this video probably generates further profits for Dyson.

Actually the motor inside of that thing is a Panasonic. AvE’s channel disassembles one of the canister vacs and proves it.

Yeah, don't be stupid like me.

Yeah... And? What's wrong with that?

Thanks 😂 🤣

Thanks man, I probably deserve an award for this.