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How to take apart 4.0ah battery pack Vax ONEPWR Blade 4 CLSV-B4KS cordless vacuum cleaner.
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- เผยแพร่เมื่อ 12 มี.ค. 2022
- Careful batteries can explode or go on fire. Here I show you how to open Vax ONEPWR Blade 4 CLSV-B4KS 4.0ah battery pack and the type of batteries inside. Be careful as batteries can go on fire. Honestly this battery lasted about 20 re-charges before going dead. Even though we followed the instruction on re-charging to the letter. They won't replace it. New battery pack £80!! Worked fine at the start but the cleaning ability faded. We cleaned the filters. In fact in the end I took the thing apart to clean so it was like new. Still you would push dirt around the wooden floor rather than sucking it up. I think the batttery was gradually dying.I bought a £65 corded vacuum cleaner. Less than the battery cost. Much better suction and you don't have to carry it like the Vax. And don't worry about the battery going flat half way through cleaning. Most likely it cost about £3 per use. Like a subscription to Vax. So I've stopped my subscription.
Great Video! My battery failed on me showing no lights within the first year of owning it after leaving it on the battery on the charger for multiple weeks. Opened it up nice and easy with the info from your video, and was able to determine the battery's pinout from the PCB.
The battery's drained far to low I guess from sitting on the charger for an extended period of time so I was able to direct connect another 20v battery I had to get it to a level where the charger would accept it again.
Hoover's support is useless, and trying to get a hold of them is even worse.
How you repaired it? Mine showing 1st and 3rd LED on battery! Please tell me.
Same here how did you do that
I had the same problem just out of the 1 year warranty. I politely contacted VAX with some pics. They were fantastic. I was sent out a free replacement within a week. Not did I get hassle trying to prove anything. That said I was wondering how you got into the battery pack. I want to use the batteries (well what works).
I hope this helps...yes I had the same issue with the Hoover onepwr 4.0 battery and what I did was pulled all the batteries out re soldered in all new cells and it works great.it was around $30.00 us dollars to buy all new Samsung cells.
Thank you!!!!
Here is Canada Hoover is the brand name for the ONEPWR vacuums. Many are having the same problems with these batteries. They only last between 6-12 months. I emailed Hoover multiple times and they just don't response. The vacuum has a 3 year warranty, same with the batteries. I eventually managed to start a chat on their site and was able to get them to send a replacement under warranty.
I wonder if these are set up to go bad after so many charges. Both my battery packs are not charging. Flashing red light on the charger. One is completely dead after checking all cells with a voltmeter. The other one shows the cells being fine but led error lights 1 and 3 are on. If the one that has good cells inside can't charge then it's the circuit inside the pack that is bad. So changing the cells won't do a thing to help. They want you to buy a new pack every year. And you can't fix the old battery packs that have error codes 1 and 3.
It's a T10 security bit
I also have the 1st and 3rd light issue with this battery. Anyone was able to figure out how to reset the BMS?
Mine showing 1st and 3rd LED on battery! Individual cell charging not helping. How to fix this from battery pack memory?
Hi Sean. I need to bring the voltage of my OnePwr up from another battery. Could you advise me which are the positive and the negative terminals on the battery?
Same 1&3 problem here. Checked the cells and they're all between 3,29 and 3.72. Anything else I can do to try and save the pack. Vax batteries do seem to be a bit of a joke
Interesting b ut how do you actually remove the batteries without wrecking the fixings?
Vax know that there batteries will need replacing every 18 months & want you to buy a new one. Your warranty ends up finishing so best thing to do is extend your warranty through domestic & appliance!
Do all 5 break? How do you check which ones are still good with a multimeter? I plan to redo the same battery pack like this. Thanks
Good to know, thanks.
I bought a Vax onepwr blade 4 cleaner, with two batteries, and the batteries are JUNK! One of the batteries is already faulty, after only about 10 charge cycles, I am absolutely livid that I wasted my money on this piece of crap.
Did you manage to get the pack to work after replacing the defective cell? I replaced a cell in one of my packs and then made sure all the cells were balanced, but the pack still shows as being defective so I think Vax might have something built into the BMS that needs resetting before it can work again, pretty frustrating.
Hey, same problem here. I think these things are built to fail ... Have you managed to find a solution to reset the BMS?
Apply 18v directly to the positive and negative to the cells whilst removing and replacing the cells keeps the bms live without resetting it
Vax clearly have an ongoing issue with their batteries. Mine just went belly-up after 7 months and probably no more that 20 or so charges. This seems to be a common pattern. Not sure if it's a BMS problem or a quality control issue at Samsung. I found one cell in my pack had dropped to 3.2v whilst the others were at 3.7. I recharged the low cell to 3.7 but the pack still refuses to charge.
As for Vax telling me they don't want it back and to just dispose of it, what a terrible waste! There are at least 4 perfectly good cells in there just being thrown away. I think manufacturers should be made to recycle these packs themselves. I'm another one who will be going back to mains power when the replacement battery gives up the ghost - probably in another 7 months time.
Hello ANC - do you have a link to the PCB on ali express please? Did you get the battery working yet as I have an identical problem - faulty cell replaced but LEDs 1 and 3 lighting up when the test button is pressed and not charging...
Same issue with me, did you find any resolution?
@@Pdeberar Yes, used their 2 year warranty and got a new replacement!
@@Pdeberar you found any other solution rather then replacement?
@@TuhinBhuiyanWebDeveloper Nope I have not
Have removed the screws but still cannot open it. Do I need pins for the holes?
It's maybe slightly stuck. Just gradually wedge apart. Maybe put thin blade screwdriver in the gap and prise apart. My pack came apart with a bit of pulling. Nothing too much.
@@seannone2409 thank you for the info. I have managed to open it up but the problem i now face is that the cells, they are flash soldered together. I was hoping to charge them separately as the vax charger isnt accepting it and claims that the pack is faulty, but ive lost 2 battery packs in the last 2 weeks. Not great for the cost of them to replace.
Does anyone know what the cells were for this battery and where I can get some replacements, or suggest some upgrade batteries if it will run on other cells.
MINE HAS SAMSUNG 30Q'S IN THE 3AH PACK... THE 4AH PACK HAS 5 21700 SIZE 40T BATTERIES
Try ebay or amazon
Hi mate, can you zap some life into these, if so which is positive and negative, as my battery doesn't say?
Cheers
Torx Security screwdriver is required ~ does anyone know what size head?????????
T10S
Just had both my battery,s die on me within a few days of each other .They are sending me out 2x new ones .Same battery,s as i use in my vapes so ill open up and keep the good ones .Just opened one up and it is actually stamped on the battery do not use in vapes!!!
Yeah they can blow up
DO NOT drill out the "pin".... There is NO pin.. It's a set up. Just use the T10H to unscrew the 4 screws and pull the upper and lower halves apart. If you try and drill the pin out, you'll hit the battery and it will explode.
Your absolutely right . I tried to drill out the 4 pins and I hit one of the batteries and it started to smoke really bad then it exploded. Crazy! Bad advice...
@@chiligreen1552😂😂 really? Sounds like you are useless!! How the heck can you drill through the body when trying to simply remove the pin?? Sounds like you shouldn't be trying DIY 😂😂😂
A set up? 😂😂😂😂😂😂😂 oh dear!! Some people really should leave tiny DIY jobs.
I think the charging board is set to a charging limit
Hi buddy, is there a fix for this? My 4.0 battery is not charging and lights up 1 and 3 when I press charge status 🤦🏻
Same here. Had the machine exactly one year and both batteries show up as being defective on the same day!
Still under warranty so Vax has replaced them, but am concerned about the future of my Blade 4.
Seen some videos about jump starting your defective battery with a new fully charged one.
But these Vax ones have the gripping connectors on the charger, not the battery like most do.
Using crocodile clips may work after you figure out which is the + and which is the - terminals
But there is a chance you can damage your new battery using this method.
@@bigo93 I have a pack which failed in exactly the same way, Vax just sent out a replacement pack without question - makes me think they know full well the design of these is defective but don't want to admit it. I am wondering how the charger knows the pack is defective... Bad charging circuit or a fuse popping?
Had the exact same issue (lights 1 and 3) and Vax sent a replacement out with no problems and told me to "dispose" of the faulty one. Instead, I've opened it using this guide and using a multimeter, determined that one of the 5 cells is faulty. (its only reading 0.8v compared to the 3.5v of all the others.) Hopefully replacing that will give me a nice £80 battery for next to nothing!
@@ChristopherWoods Hi, how did contact vax for the best response? Regards
@@holydohnut Hi, how did contact vax for the best response? Regards
Has anyone had an issues with the charger? Mine has just stopped working. Vax sent out a new battery last year and now the charger has went. Hoover isn’t even 2 years old 🤦🏽♀️
Yes, both our onepwr batteries failed within months of purchase. Company sending replacements under warranty. I don't have much hope for the new ones.
Not only samsung cell, sometime it is Lishen cell because this is very cheap
Vax batteries are an absolute Joke! I’ve got Makita batteries for cordless tools over 5 years old and still working fine.
Same for me. I had one of these fail after maybe less than 20 charges and have more than 10 all second hand Makita batteries. Only one failed after bricking it on the charger when it was too hot. Chinese board inside maybe 3 years back and still going as the same thing happens with the boards. They can't be reset.
tanx mannnn
The batteries are cheap I get them from frogster they are £5 for Samsung or £3.25 for cheaper ones thanks. £25 is better than £42
The battery is probably the main failure for cordless cleaners. They have now become part of the consumable model like razor blades and ink cartridges. One of my VAX glide batteries doesn't charge anymore and it looks like one of the cells have started to go bad. I'm going to discharge, isolate and run capacity tests on them. The PCB may have also 'tripped' so changing the bad 21700 may require replacing the PCB as well. I am about to buy a PCB from ali express and keep either as as a backup or form a new battery pack.
Any luck with changing the PCB?
@@EdCurtisTv I have the PCB arrive a couple of weeks ago but I haven't had the chance to look at it as I've been on annual leave. I also need to source the cells but first I'm going to run capacity tests to find which ones and how many I need to replace. I'll try doing it this weekend.
Any updates??
Mines gone, I've identified the faulty cell with states 0.0v where the others are between 2.7-3.3v
Debating in swapping the cell but seen your comments about the pcb going.
Are they spot welded together or would solding them in work??
@@tautegu any luck?
Which PCB did you buy? Can you share its link? Thanks!
None of the Vax 4 qualities matter when the battery stops working and it’s only over a year old so the warranty doesn’t cover a replacement one.Customer service were casual about the fact that the battery had gone and £70 was acceptable for the new one.I might as well bought a proper mains Hoover instead of this cheap Chinese toy.
Its a Con