Our Dyson replacement battery video series are our most popular and most expensive videos to produce. For every video, we have to buy the vacuum and batteries at full retail. If you found this video helpful and would like to support our work, please consider giving us a Super Thanks above. We appreciate you watching!
Thanks for your excellent evaluation the inexpensive knockoff batteries. You confirmed what others have also concluded, cheap batteries are really expensive. I really appreciate your in depth evaluation of the batteries used in each model.
I bought the powerextra 5.0 .... I dropped the vacuum from a very low height and the battery malfunctioned after that. You were right apparently correct about the cheap circuitry.
Great job Matt. Extremely interesting, even to someone who does not own this product. I always find your videos very educational. Thanks Matt. John in Ohio
good job, thanks for the in-depth comparison; after my no-name replacement from eBay failed prematurely I stumbled upon Makita/Dewalt/Stanley battery adapters for Dyson, something to consider
Thanks for the comment! I have been testing a Milwaukee adapter and will be filming on it soon. There are some pluses and minuses, but it is certainly an option for those already invested in a power tool ecosystem.
I have been looking at the adaptors also. Reading the reviews it is not a slam dunk. The low amp hour batteries don't work well so that limits available batteries. Then I wonder if I want to risk my high quality Dewalt batteries on a vacuum that is used everyday. Overall Dyson looks really bad when you consider their complete failure to address battery life and battery replacements. These vacuums are much more expensive when the overall cost of ownership is considered.
Thanks for the video. Just a note to others, I've went through 3 powerextra batteries in the last 1.5 years on my V7. They just stop working and have no voltage. Even though I've been able to get the manufacture to provide replacements, they just don't last more than 6-8 months. One died in less than a month.
Always great to hear first hand experience! There are always variables like whether the vacuum is left on the charger, if the vacuum is charged directly after vacuuming or if the battery is allowed to rest, etc. As always, the best and most reliable option is always the OEM battery, it is just going to cost a pretty penny to get it. Cheers!
@@FknNefFy problem with that is the voltage is different and the Dyson won’t run at the same voltage and power will be less, best thing to do is replace the cells yourself but also change the firmware on the battery pcb as Dyson have pulled off a trick on the V6 and V7 batteries, they are designed bad, the resistors for cell balancing is missing even though the pcb has the solder pads for them, then bcuz of then missing the cells can go out of balance and it kills the battery which is a scam from Dyson, only way to fix it replace the battery but originals are expensive and non originals are rubbish, so best to repair the original battery with higher capacity cells and reprogram the pcb with custom firmware which is available, do not ever believe the capacity on replacement batteries as it’s always lies, that’s why I choose to rebuild the original one
I just replaced my battery on a V7 with a DTK battery. I have two V7s here and the one with the replaced battery has a different trigger switch feel. (Seems to feel different, requiring slightly more effort with a slightly different switch actuating position.)
That makes sense. The trigger is just an activator that presses on the switch contained in the battery. If you change the battery you are changing the switch, which could result in a different feel. Hope that helps!
The V7 does, but the V6 doesn't. The V6 will go to the moon on temperature if you let it. It makes me nervous testing them, but it hasn't killed me yet. YET. Ha!
My V7 stopped working on high power before 2 years, I finally took it to an appliance repair store and they said the battery was bad, Dyson stopped making the batteries and aftermarket batteries were prone to fire so now my V7 was a paper weight. Any validity to the fire hazards of an aftermarket battery? Thanks.
Sounds like the sales person tried to scare you into buying a new vacuum. All batteries pack come with a BMS which won’t charge the battery if it is not between certain voltage and the danger of a fire is minimum. However, aftermarket batteries usually use inferior 18650 cells and won’t last as long as OEM, so only buy ones with good warranty.
You can do that, but it's difficult. The Dyson BMS will lock out if voltage falls to zero. So you need to hook the PCB up to some low voltage before removing the cells. If you can do that, any 20A battery will work well. Murata, LG or Samsung will all treat you well. Make sure you get them from a reputable battery site so you don't get counterfeits. I like imrbatteries dot com or illumn dot com.
IMO, they are all the same junk. OEM is the only solution and even they don't last as long as they should. Dyson needs to come out with a double size battery pack replacement and at a reasonable cost (we already overpaid for the vacuum, stop gouging us on the batteries that don't last). Seven minutes of run time is ridiculous.
THE HAND HEALD VACUUM SCAMM I'm currently working on fitting a power tool battery adaptor to a dyson dc16 that someone has thrown out so that I can run it on batteries I already have, also so that I can swap out batteries in seconds plus use one battery while another is on the fast one hour charger, BTW power tool battery packs typically are designed with more than double the power handling ratings of stock dyson packs thereby reducing the heat! (battery killer). Please don't take cordless vacuum cleaning too seriously because the energy required can't be stored in a lightweight battery pack, it's an great example of oversold unfit for purpose marketing plane and simple as that, you have seen here in this video, an unloaded brand new cleaner only ran 7mins at full power, bare in mind if you were to start and stop the unit as in normal use this time would be reduced to a lower running time due to higher start up loads than constant running requires, in real life these machines deliver very low suction compared to a quality mains powered vacuum cleaner. A mains power cleaner requires 100s of Watts (average 600watt hours) per hour to provide reasonable suction therefore it makes no sense that a battery pack with less than a total of 70 Watts capacity (dyson 23-65 watt depending on model) can do the same job. I should add these things are very noisy in your face units heavy on your wrist to lift above your head compared to a hose, dust in your face if filters aren't 100% efficient etc. BTW. when I went to so much trouble writing this comment I decided to add a title to my conclusion.
So far so good. I have also been testing a Milwaukee battery adapter for this machine and will have a video with my thoughts coming out soon. TLDR... it has it's tradeoffs and isn't a silver bullet. The main issue with the OEM battery packs isn't typically heat or power draw. If that was the case, then high consumption power tools would be tearing through batteries as well. Rather, it has more to do with poor charging standards (no individual cell balancing), leaving the vacuum on the charger for days at a time, and charging the vacuum immediate after usage. There are a ton of variable, but it is possible to work most of this out as demonstrated by Milwaukee, Dewault, Makita, etc.
You mentioned soldered wires and "sloppy" for the Powerextra, but there's nothing wrong with soldering the wires to the nickel strips themselves instead of soldering strips directly to the cells. What you failed to mentioned was what ELSE is sloppy about the circuit board, if anything.
I wasn't saying that the soldering would necessarily cause issues, but the overall execution was poor when compared to the competitors. That may or may not be indicative of corners cut elsewhere, but it is worth taking into account.
Why would it be way better? The original Dyson pack used quality cells. If you are going to do that, just get new cells (Samsung if that's what you want, but Samsung also makes some lower current models of cells that are unsuitable) before Dyson's logic board locks out the pack, and swap them into the original Dyson pack, no need to buy the aftermarket battery pack at all. However you must supply voltage to the BMS while doing the swap so that it does not lock out.
I think the larger issue would be making sure you have a perfectly matched set of cells to install. They need to have very similar internal resistances, like within 5%. The reason is because Dyson does not balance charge each cell, so if you get a bad cell that charges slower than the others, it will eventually discharge to the point it bricks the pack and always shows the pack as low voltage. Using that method of cell selection would be the best bet to overcome the weaknesses inherent in Dyson's design as well as the replacements. Great question!
If you don't have experience spot welding lithium batteries, I wouldn't recommend it. One wrong move and you could prompt a cell to thermally runaway. You also have to use an electric momentary spot welder for battery cells, you shouldn't solder them because of the heat generated.
Runtime and build... but usually if it is build right, the runtime will follow. That's what made this such a difficult call. We'll see what happens when I do a follow-up test in a year or so. Thanks for watching and commenting!
Meh, these things make a very annoying higher pitched sound and I'm always happy to hear that my S.O. has ran out of battery charge so the annoying noise, STOPS! lol Shorter battery life might be better.
Actually I think James Dyson has scammed the world into thinking bagless battery vacuum cleaners are better for the environment than a traditional electric mains powered vacuum cleaner with a paper bag. A mains lead isn't a big issue for most people compared to charging, running flat in they middle of cleaning, then having to wait hours before the thing is ready to use again. Definitely cost per minute on battery powered vacuums is many times higher than plug in units. Just stupid technology that's many times more costly to clean a house, maybe there's a case if you spill something, handy for quick and grab cleaning.
@@martinmuldoon603 It's not even about the charge, it's about not having to spend more money buying bags. Just get a corded unit if runtime is such a big issue. People only choose to use the cordless for the convenience of portability.
THE HAND HEALD VACUUM SCAMM I'm currently working on fitting a power tool battery adaptor to a dyson dc16 that someone has thrown out so that I can run it on batteries I already have, also so that I can swap out batteries in seconds plus use one battery while another is on the fast one hour charger, BTW power tool battery packs typically are designed with more than double the power handling ratings of stock dyson packs thereby reducing the heat! (battery killer). Please don't take cordless vacuum cleaning too seriously because the energy required can't be stored in a lightweight battery pack, it's an great example of oversold unfit for purpose marketing plane and simple as that, you have seen here in this video, an unloaded brand new cleaner only ran 7mins at full power, bare in mind if you were to start and stop the unit as in normal use this time would be reduced to a lower running time due to higher start up loads than constant running requires, in real life these machines deliver very low suction compared to a quality mains powered vacuum cleaner. A mains power cleaner requires 100s of Watts (average 600watt hours) per hour to provide reasonable suction therefore it makes no sense that a battery pack with less than a total of 70 Watts capacity (dyson 23-65 watt depending on model) can do the same job. I should add these things are very noisy in your face units heavy on your wrist to lift above your head compared to a hose, dust in your face if filters aren't 100% efficient etc. BTW. when I went to so much trouble writing this comment I decided to add a title to my conclusion.
Hey Martin, I appreciate you adding to the conversation. However, you have posted this exact same thing to other threads verbatim. Please add new thoughts to the discussion when posting next time. Thank you!
Our Dyson replacement battery video series are our most popular and most expensive videos to produce. For every video, we have to buy the vacuum and batteries at full retail. If you found this video helpful and would like to support our work, please consider giving us a Super Thanks above. We appreciate you watching!
This was super informative! Thank you so much for your hard work!
Thanks for your excellent evaluation the inexpensive knockoff batteries. You confirmed what others have also concluded, cheap batteries are really expensive. I really appreciate your in depth evaluation of the batteries used in each model.
The best review of anything I've seen on TH-cam!
Thank you so much, that means a lot. Thanks for taking the time to comment!
I bought the powerextra 5.0 .... I dropped the vacuum from a very low height and the battery malfunctioned after that. You were right apparently correct about the cheap circuitry.
Great video, very informative.
Thank you, happy to help!
Great job Matt. Extremely interesting, even to someone who does not own this product. I always find your videos very educational. Thanks Matt.
John in Ohio
Thanks, John!
good job, thanks for the in-depth comparison; after my no-name replacement from eBay failed prematurely I stumbled upon Makita/Dewalt/Stanley battery adapters for Dyson, something to consider
Thanks for the comment! I have been testing a Milwaukee adapter and will be filming on it soon. There are some pluses and minuses, but it is certainly an option for those already invested in a power tool ecosystem.
I have been looking at the adaptors also. Reading the reviews it is not a slam dunk. The low amp hour batteries don't work well so that limits available batteries. Then I wonder if I want to risk my high quality Dewalt batteries on a vacuum that is used everyday. Overall Dyson looks really bad when you consider their complete failure to address battery life and battery replacements. These vacuums are much more expensive when the overall cost of ownership is considered.
Thanks for the video. Just a note to others, I've went through 3 powerextra batteries in the last 1.5 years on my V7. They just stop working and have no voltage. Even though I've been able to get the manufacture to provide replacements, they just don't last more than 6-8 months. One died in less than a month.
Always great to hear first hand experience! There are always variables like whether the vacuum is left on the charger, if the vacuum is charged directly after vacuuming or if the battery is allowed to rest, etc. As always, the best and most reliable option is always the OEM battery, it is just going to cost a pretty penny to get it. Cheers!
I think best to build your own battery
BUY THE ADAPTER FOR TREE RECHARGABLE DRILL batteries. Then you don't have to keep replacing them
@@FknNefFy problem with that is the voltage is different and the Dyson won’t run at the same voltage and power will be less, best thing to do is replace the cells yourself but also change the firmware on the battery pcb as Dyson have pulled off a trick on the V6 and V7 batteries, they are designed bad, the resistors for cell balancing is missing even though the pcb has the solder pads for them, then bcuz of then missing the cells can go out of balance and it kills the battery which is a scam from Dyson, only way to fix it replace the battery but originals are expensive and non originals are rubbish, so best to repair the original battery with higher capacity cells and reprogram the pcb with custom firmware which is available, do not ever believe the capacity on replacement batteries as it’s always lies, that’s why I choose to rebuild the original one
I just replaced my battery on a V7 with a DTK battery. I have two V7s here and the one with the replaced battery has a different trigger switch feel. (Seems to feel different, requiring slightly more effort with a slightly different switch actuating position.)
That makes sense. The trigger is just an activator that presses on the switch contained in the battery. If you change the battery you are changing the switch, which could result in a different feel. Hope that helps!
I’m told original Dyson battery doesn’t have a thermal cut out if got too hot. Is that right?
The V7 does, but the V6 doesn't. The V6 will go to the moon on temperature if you let it. It makes me nervous testing them, but it hasn't killed me yet. YET. Ha!
My V7 stopped working on high power before 2 years, I finally took it to an appliance repair store and they said the battery was bad, Dyson stopped making the batteries and aftermarket batteries were prone to fire so now my V7 was a paper weight. Any validity to the fire hazards of an aftermarket battery? Thanks.
Sounds like the sales person tried to scare you into buying a new vacuum. All batteries pack come with a BMS which won’t charge the battery if it is not between certain voltage and the danger of a fire is minimum. However, aftermarket batteries usually use inferior 18650 cells and won’t last as long as OEM, so only buy ones with good warranty.
I'm looking to replace my battery. If I just replaced the cells, could I get extra run time out of it? Say, going with the 3000 20a cell?
You can do that, but it's difficult. The Dyson BMS will lock out if voltage falls to zero. So you need to hook the PCB up to some low voltage before removing the cells. If you can do that, any 20A battery will work well. Murata, LG or Samsung will all treat you well. Make sure you get them from a reputable battery site so you don't get counterfeits. I like imrbatteries dot com or illumn dot com.
@@HouseOfVacuums awesome. Good info. Thank you. Yeah, those are my goto sites too.
@@HouseOfVacuums So what volt and amp need to be maintained on BMS to prevent lockout?
It was tough to make a pick in this video. Anyone have a different selection?
IMO, they are all the same junk. OEM is the only solution and even they don't last as long as they should. Dyson needs to come out with a double size battery pack replacement and at a reasonable cost (we already overpaid for the vacuum, stop gouging us on the batteries that don't last). Seven minutes of run time is ridiculous.
@@OMGWTFLOLSMHyeah last time I ever buy Dyson junk
What you mean by OEM battery? Are you describing the factory-default battery or a brand-name?
that means factory default battery
"OEM" mean's "Original equipment manufacturer"
is there an update on longevity of the battery?
THE HAND HEALD VACUUM SCAMM
I'm currently working on fitting a power tool battery adaptor to a dyson dc16 that someone has thrown out so that I can run it on batteries I already have, also so that I can swap out batteries in seconds plus use one battery while another is on the fast one hour charger, BTW power tool battery packs typically are designed with more than double the power handling ratings of stock dyson packs thereby reducing the heat! (battery killer).
Please don't take cordless vacuum cleaning too seriously because the energy required can't be stored in a lightweight battery pack, it's an great example of oversold unfit for purpose marketing plane and simple as that, you have seen here in this video, an unloaded brand new cleaner only ran 7mins at full power, bare in mind if you were to start and stop the unit as in normal use this time would be reduced to a lower running time due to higher start up loads than constant running requires, in real life these machines deliver very low suction compared to a quality mains powered vacuum cleaner. A mains power cleaner requires 100s of Watts (average 600watt hours) per hour to provide reasonable suction therefore it makes no sense that a battery pack with less than a total of 70 Watts capacity (dyson 23-65 watt depending on model) can do the same job. I should add these things are very noisy in your face units heavy on your wrist to lift above your head compared to a hose, dust in your face if filters aren't 100% efficient etc. BTW. when I went to so much trouble writing this comment I decided to add a title to my conclusion.
So far so good. I have also been testing a Milwaukee battery adapter for this machine and will have a video with my thoughts coming out soon. TLDR... it has it's tradeoffs and isn't a silver bullet.
The main issue with the OEM battery packs isn't typically heat or power draw. If that was the case, then high consumption power tools would be tearing through batteries as well. Rather, it has more to do with poor charging standards (no individual cell balancing), leaving the vacuum on the charger for days at a time, and charging the vacuum immediate after usage. There are a ton of variable, but it is possible to work most of this out as demonstrated by Milwaukee, Dewault, Makita, etc.
EASY TO USE FOR SENIORS
You mentioned soldered wires and "sloppy" for the Powerextra, but there's nothing wrong with soldering the wires to the nickel strips themselves instead of soldering strips directly to the cells. What you failed to mentioned was what ELSE is sloppy about the circuit board, if anything.
I wasn't saying that the soldering would necessarily cause issues, but the overall execution was poor when compared to the competitors. That may or may not be indicative of corners cut elsewhere, but it is worth taking into account.
Once you have an aftermarket battery pack take it apart after it dies out and replace with Samsung cells it's way better than the genuine Dyson one
Why would it be way better? The original Dyson pack used quality cells. If you are going to do that, just get new cells (Samsung if that's what you want, but Samsung also makes some lower current models of cells that are unsuitable) before Dyson's logic board locks out the pack, and swap them into the original Dyson pack, no need to buy the aftermarket battery pack at all. However you must supply voltage to the BMS while doing the swap so that it does not lock out.
I think the larger issue would be making sure you have a perfectly matched set of cells to install. They need to have very similar internal resistances, like within 5%. The reason is because Dyson does not balance charge each cell, so if you get a bad cell that charges slower than the others, it will eventually discharge to the point it bricks the pack and always shows the pack as low voltage. Using that method of cell selection would be the best bet to overcome the weaknesses inherent in Dyson's design as well as the replacements. Great question!
can I replace the battery instead the whole Battery pack ?
If you wanna risk soldering lithium
I've seen people do it, but it's difficult, risky, and more trouble than it's worth
If you don't have experience spot welding lithium batteries, I wouldn't recommend it. One wrong move and you could prompt a cell to thermally runaway. You also have to use an electric momentary spot welder for battery cells, you shouldn't solder them because of the heat generated.
BUY THE ADAPTER FOR YOUR RECHARGABLE DRILL batteries. Then you don't have to keep replacing them
Video upcoming about those guys!
Bottom line... it's all about run time.
Runtime and build... but usually if it is build right, the runtime will follow. That's what made this such a difficult call. We'll see what happens when I do a follow-up test in a year or so. Thanks for watching and commenting!
For me it's all about the life of the battery. I'd be happy to accept 5 mins run time if the battery would last 5 years instead of 6 months.
Meh, these things make a very annoying higher pitched sound and I'm always happy to hear that my S.O. has ran out of battery charge so the annoying noise, STOPS! lol Shorter battery life might be better.
Lifetime and safety matters even more, it directly contributed to the cost-effeteness.
Gee, if my cordless vacuum gives me heartache, imagine if I had a electric car. Battery ran anything sucks.
SKIP TO 09:12 ya'll welcome!
They're mostly scams
Actually I think James Dyson has scammed the world into thinking bagless battery vacuum cleaners are better for the environment than a traditional electric mains powered vacuum cleaner with a paper bag. A mains lead isn't a big issue for most people compared to charging, running flat in they middle of cleaning, then having to wait hours before the thing is ready to use again. Definitely cost per minute on battery powered vacuums is many times higher than plug in units. Just stupid technology that's many times more costly to clean a house, maybe there's a case if you spill something, handy for quick and grab cleaning.
That is why we make these videos, to see if any are legit.
@@martinmuldoon603 It's not even about the charge, it's about not having to spend more money buying bags. Just get a corded unit if runtime is such a big issue. People only choose to use the cordless for the convenience of portability.
THE HAND HEALD VACUUM SCAMM
I'm currently working on fitting a power tool battery adaptor to a dyson dc16 that someone has thrown out so that I can run it on batteries I already have, also so that I can swap out batteries in seconds plus use one battery while another is on the fast one hour charger, BTW power tool battery packs typically are designed with more than double the power handling ratings of stock dyson packs thereby reducing the heat! (battery killer).
Please don't take cordless vacuum cleaning too seriously because the energy required can't be stored in a lightweight battery pack, it's an great example of oversold unfit for purpose marketing plane and simple as that, you have seen here in this video, an unloaded brand new cleaner only ran 7mins at full power, bare in mind if you were to start and stop the unit as in normal use this time would be reduced to a lower running time due to higher start up loads than constant running requires, in real life these machines deliver very low suction compared to a quality mains powered vacuum cleaner. A mains power cleaner requires 100s of Watts (average 600watt hours) per hour to provide reasonable suction therefore it makes no sense that a battery pack with less than a total of 70 Watts capacity (dyson 23-65 watt depending on model) can do the same job. I should add these things are very noisy in your face units heavy on your wrist to lift above your head compared to a hose, dust in your face if filters aren't 100% efficient etc. BTW. when I went to so much trouble writing this comment I decided to add a title to my conclusion.
Hey Martin, I appreciate you adding to the conversation. However, you have posted this exact same thing to other threads verbatim. Please add new thoughts to the discussion when posting next time. Thank you!