Ep 33 Electric Toothbrush Battery Replacement/Upgrade
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- Опубликовано: 16 июн 2018
- Replacing/Upgrading the battery in an electric toothbrush
In this video I step through the swap out of the old 600mAh NiCd battery with a 2000mAh NiMh battery.
Instructable here: www.instructables.com/id/Elec... 
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Just did my one! This has bugged me for ages, so good to keep using a perfectly good toothbrush! Down with planned obsolescence!
It's definitely a "first world problem" but I agree with you, it's great not to have to recharge the toothbrush every few days
@@PowerOn- I use the one that takes two disposable AA batteries and put two Eneloops in it. That way I never have to worry about an internal battery wearing out.
Yeah I have same model. to be honest it’s amazing electric toothbrush the quality that can last for so long. Unfortunately for me. I’ll just have to spend the $37 to buy a new one.
I just did it today. I couldn't solder the tabs to the battery, but just used masking tape and that's it. It is working again after almost 8 years of storage.
I’ve had mine for about 11 years and only a few weeks ago it started acting up.
Thanks so much for this very helpful procedure. I have just replaced the original 700mAh NiMh battery with at 2200mAh NiMh. I found the new battery on e-bay and it had the solder tags pre-fitted, although they needed a little trimming prior to installation. The whole job took me around an hour, I could probably have done it quicker but as this was the first time I had attempted it I exercised a little caution along the way, and also cleaned the brush before re-assembly.
Well done Simon!
Well done Richard. Another toothbrush given an extended life 😁
Hi, what voltage did you go for ?
700 NiMH to 2000 is amazing
Many thanks Simon! Recovered 3 of these Braun and they used to open at the base. Fitted an NiMH after opening at the top as per your video, and it didn't run. Few mins on the charger, back and working. Another gadget saved from landfill. Cheers!
Good work Mike, keep it up!
I recently replaced the battery of my toothbrush with the help of this video. I used to get 2-3 days of juice out of it. After replacement I've been using it for more than two weeks now without recharging! Thanks a lot!!
Very helpful and great video to demonstrate the steps. Bear in mind that don't try to solder the terminal on the battery, as explosion may happen due to overheat the battery seal(s). Simon used correct method/tool (spot welding) to do the great job. Thanks Simon.
Glad to be a help
@@VIKINGNATURALSOAP No, and soldering is fine also if you are not heating it up too much. Clean the ends with sandpaper, use some flux and a large soldering tip and tin both surfaces you will be connecting
Ya, what if you don't happen to have a battery spot welder handy???
Just did this to a couple oral-b’s that had old ni-MH batteries. video was great, thanks!! I did not have de soldering bulb so I attached a straw to a vacuum which sucked solder right up! Also vaseline/petroleum jelly works well as a flux replacement!! 😎
Lots of great tips!
What I cannot understand is why they don’t make them so you can just replace the battery like you can with a light. Great video buddy 👍🙂
to make people go and buy a new one
So you buy a new one. It is a world of consumerism mate
@David Thompson, if they had invented flashlights this millennium then you wouldn’t be able to replace the batteries! You would simply have to throw it away and buy a new flashlight every time the battery died. Built in failure and prevention of service and repair should be outlawed in my opinion.
So we should continue to make rubbish that breaks - for factory workers? I think it’s better to make products serviceable - then people can be employed to service them instead of making even more crap that breaks and has to be put in landfill.
Because they are a little bastards
Thank you very much Simon, very useful! I had the same problem with not turning back on but when I had done nothing more than remove the insides from the casing, no desoldering, nothing.
Happily, putting it on the charger for a minute worked. This device obviously doesn't like any tampering! I thought I must have cracked the PCB at first. Mine wasn't a battery issue but the underside of the rubber on/off switch cover was worn away, making it hard to turn on when assembled. A bit of silicone sealer has filled the gap and will hopefully work when it's cured.
I do love fixing stuff.
Many thanks for such a clear video. I've been wanting to replace the battery in mine for ages, but didn't want to break it taking it apart. Gone from the 700mAh cell that never worked well , even from new, to a new 2800mAh battery that lasts for ages!
Well done Terry, I find that the higher capacity cells can work for a few weeks untill a charge is required.
I followed your video to replace the battery. I was able to get the same battery at a local Jaycar store. The toothbrush is working and charging fine again. When I was unsoldering the negative battery terminal from the circuit board, I lifted the pad off the board at one edge. I was using too small sized soldering iron tip and applying too long on the board because the solder would not melt. When I changed to a thicker tip it melted quickly with no further damage, Thanks for your video.
Brilliant Thank You !! Just unscrew it and found the fault ! The rubber that you push down onto the on button had a split in it ! Inside full of sticky toothpast ! WD cleanup bit 0f grease on the gear in the head !AND Ive got my lovely leky toothbrush back running again ! Thank you again from a very white smile !!🙂
...even I might be thinking about a replacement when something like that happens! 🤣 Anyway, good on you for resolving the issue. Maybe the split rubber could be resealed, possibly a smear of silicone sealer if you have some?
Thank you so much for this video! I replaced the battery in my toothbrush! Feels so good that in this case I'm not a victim of planned obsolescence!
Hi, which rechargeable battery you now have it in the toothbrush? I would like to have mine replaced as well.
It’s really hard to call it planned while it works for about a decade. I used mine for over a decade.
Batteries just go bad over time
@@CrackedPi exactly
@@CrackedPiWhich is why it should be replaceable.
I bought a Pro 2 unit pack years ago, only used 1 handpiece until it seemed to be down on power and charge duration.
Put that aside for about 5 years until the 2nd handpiece slowed similarly. Was looking for exactly this type of information.
Charged the original up and it's still working well another 3 years later. Original battery.
Good job Simon and thanks for the video upload. I have the same brush and before watching this video I was trying, unsuccessfully, to open it from the bottom.
Thanks for the comment Abdo. The technique for opening is a little counter intuitive. I'm glad you found the video useful.
Doing this today. I replaced the battery before but that one's almost totally gone. 1/2 the time I turn it on it only has 1/2 second action. Other times it's good for 2 minutes and dies, right at the end. I'm replacing with an Eneloop this time, figure it will last way way longer than the NiMH replacement I had in there before. The original was a NiCad. I did something similar with my Oral-B Triumph toothbrush around a year ago, replaced that one's battery with an Eneloop, it's been going strong ever since. Not having a spot welder, I used a regular solder iron. The connection seemed less than reliable but so far so good. Yes, down with planned obsolescence! Thank you for this excellent video. FYI, all, another video showing similar fixing of one of these types of battery operated toothbrushes advised wiping the outside of the unit dry after each use, saying that the death of these is frequently due to water seeping inside. I towel off mine after rinsing these days.
So, after writing the above I started the process of changing the battery for an Eneloop AA that had a decent charge on it. It succeeded but there were a couple problems I had to deal with. I removed the battery that was in there. It was a NiMH I'd bought off the internet and it said on the side that it was 2200mah capacity. Of course, that is very doubtful. I then tested its voltage and to my amazement it was quite high, over 1.37 volts. But the toothbrush only worked sometimes in the last 1/2 year or more and would rarely work at all after 2 minutes and lately it wouldn't turn on for more than 1/2 second. So, what could be wrong? I decided to put the Eneloop in there anyway. I tore the tabs off the battery that had been in there and soldered them on the Eneloop. The one on the negative end wouldn't stick, so I roughed up that end of the battery using a dremel. Then the tab stayed soldered on. I assembled the toothbrush but encountered a problem in that the shaft at the top came loose from the rest of the internal unit. I persisted and managed to get it back on, completed assembly. It did not turn on, as Simon experienced and I put it on the charger for a couple minutes and then it turned on. And boy did it go! It had far more power than I'd had from the other battery and after a 2 minute usage it kept going like it never wanted to stop. I have it on the charger now, mission accomplished. I have no idea why it wasn't working with the previous battery. Maybe that was defective even though the voltage looks good using a multimeter.
I've got two of these! One works long enough to charge the other...I'm off to try this. Thanks!
Excellent, i had mine now for nearly 10 Years and now it was time for a new battery! Grat tutorial.
I hope the 'upgrade' goes well!
Thank you for sharing. An informative video to replace a battery. Video gives me the confidence to replace a battery. The difficult part is to get the cell and motherboard out of the casing.
Thanks for the comment Atma. Good luck!
Thanks for your tutorial. I could revive the brush. That is the sort of sustainability I really like.
Nice upgrade :)
The onboard controller IC needs to be externally energized after the battery is removed. Once it's turned on, it then turns on the fet to power itself from the battery. This is partially for shipping purposes as the battery should actually not be energized during shipments. That's why they say "Charge device before using" ;) it really just turns the unit on fully.
Thanks for the tip on the spot welder and being resistive welding. There's another user who was having issues with that and I passed on the info and see if they get better results now.
Thanks for the reply and explanation Korishan, it's nice to have the gaps in my (limited) knowledge filled! As for the spot welding I see lots of videos with people pressing really hard and it really makes the weld worse not better.
Hi
What do you mean by externally energized? Do you mean I should put it on it's original charger for it to work?
Thanks in advance
@@kb24theMVP yes
Just done mine. Had two to re-battery but one did not have the access using the charger peg and the top broke off when twisting it. However, I have got the other working again using the charger route and now have a spare PCB/motor should it be needed in 10 years time! Thank you for the video, and for those who pointed out the charger trick
Thanks, just did this. The connector on the original battery was broken, thats why I ended up here. I didn't know how to open the case :-)
Now the toothbrush has been repaired and upgraded. The original 700 mAh battery has been swapped with an Ikea 2000 mAh battery :-)
Well done Steen. Another upgraded toothbrush!
"Toothbrush manufacturers hate him" find out how this man got 5 more years out of his toothbrush-
Probably longer as the new battery has higher capacity and better chemistry.
I have same toothbrush and is it working all the time 13 years, YES its no joke! I nothing change just brush, no change batery and all time is ok :) Amaizing
@@NighTHunteRX1300 Same with mine!! But I only brush my teeth twice a month.
@@krisgasiorowski6608 ?? WHAT
@@krisgasiorowski6608 ONLY TWICE A MONTH?
Planned obselecence averted! Thanks, just did mine now 😁
YEESSS Great video! Crucially including the trick to restart the chips by putting the toothbrush briefly on the charger. I had followed a different video previously, which missed this bit out, and assumed wrongly I had overheated or blown the board. Just done two units upgrading from 700mAh to 2600mAh so should get mega time now :-)
Seriously it had 700mah????
I had the same problem, I used the tester, and it was OK. So I did what you did, I put the toothbrush under charge. Unfortunately I watched just half of your video, so I didn't know you had the same problem. When I finished watching your video; it gave me hope. By the time the video was over, I checked the toothbrush: it was working. My battery is much bigger, I used a 2700 mAh battery, so I had to cut all the plastic that holds the battery, and just leave the black part at the end. With a bigger battery is not necessary, it just stays in place. The charge should last much longer. The battery I bought came with the connectors, because without that solder you have, it's tricky soldering a connector to the battery, very tricky.
Well done Simon, thanks for the video, it worked for me. To think I was going to throw the whole thing away just because the battery died!
..and well done Chris!
I have an identical toothbrush. Now I know what to do thanks to you. So yes. Thank you!!
Hope you manage to change the cell!
Nice video. Just changed a battery on my toothbrush and I'm so excited that in The end guided by The steps you showed IT works again. Thanks
Thank you for your video. I followed the steps and upgraded mine smoothly. Since I thought removing and soldering of the metal strip could be difficult, I used 2 thin wires instead.
Thanks for the comment Daniel. Using a wire sounds like a good idea....not too thin though as it will be carrying a bit of current.
Helal Ossun bu kadar güzel anlatılır.Tesekkur ederiz
I'd been wanting to replace the battery on mine but didn't know how to open it, I've replaced mine now and had the same problem you did but works great now. Thanks for a great vid.
Some of the instructions describe the disassembly, in order to remove the battery before disposal.
Gotta hand it the guy for not editing out that WTF moment..... anyone who as ever worked on or in electronics has had many of them. So, Kudos to you sir! My purpose here today was to see how to get it apart, obviously. But, my plan was to use the case for my new 40mW laser module. Sadly, it requires a minimum of 3.7 volts. Oh well, plan B. PVC tubing. Good luck to all with your adventures.
Oral B
I just did this upgrade following your video. Thank you. :)
Great video. ive got a slightly earlier version of this toothbrush with a mechanical on/off switch and no timer. I bought it 11 years ago but its really been within the last 6 months ive had to charge it twice a week.. when it was new i charged it once every 3 weeks. I never knew the trick to get inside them, but now i'll have ti give it a go and change that battery
Hope it works out well!
wasn't the battery in my daughter's pink toothbrush- still had 1.2V on it. switching it on even without the motor connected puts a dead short across it.
saved the battery, & put the empty toothbrush into the heap of toddler souvenirs. might move the battery into my own, which only runs for two days' worth of use.
cheers anyway!
Thanks for a report back, looks like a capacitor or mosfet proably failed. Time for a new one!
Dude thanx I brought alive my 5 year old oral B!
thank you, just got one, it is hard to get open for me, but thanks to you I got it . Much appreciated!
Dobry DIY, zrobiłem identycznie i działa !! Wielkie dzięki !
...and a hello from Australia to a Polish viewer! Dziękuję za pozytywny odzew.
Thank you, just got mine working today again, the battery was completely gone after 10+ years. The soldering spots are pretty hard to get desoldered, I recommend adding some fresh solder on top first as it makes desoldering easier.
About charging times: The charger's specification is 1.3 Watts. Assuming the old battery had around 1.3 Volts, this means it charges with 1 Ampere (1000 mA). If the new battery holds 2000 mAh then a complete charge would take approximately 2 hours. As we don't know whether the electronics stop the charging at any point, it is probably advisable to not charge much longer than that.
Whilst I didn't check i'm pretty sure there will be a charging chip inside controlling the process, particularly the termination of charge. Also, the charging rate will be at least 20-30% below the input power as wireless charging has greater losses compared to wired. Thanks for taking the time to comment.
Good point, I just realized there is a loss due to induction charging. Also there's heat losses. Yesterday I found the instructions leaflet and it states 16 hours of charging time, and that's for the small 600 mAh battery! So there must be some function to slow down the charging. I assume that's because most people leave the toothbrush in the charger anyway.
I'm not sure what type of solder they used, but it won't get wicked up properly with the copper braid. And there was a LOAD of solder on it already, the factory solder was pretty bad on mine, was like a ball and had a load of flux spilling out when heated. Ended up sticking a small screwdriver behind the board and solder away until it popped out.
Very useful, good video warts n all. Thanks Simon Jowett
Thanks. It took me two failed attempts to get it right, but now I’ve got it. I’ve done two successfully so fR and another 5 to go.
Sounds like an upgrade for the whole family 👨👩👦👨👩👦👦👨👧👧👩👦👩👦👦
Good man. Great to see videos like this. I try to fix everything I can, but don’t always know how.
The hardest part can sometimes be diagnosing a faulty part or component
Just follow the instructions and successfully replace the battery for two OralB. Great video. One comment: you could you normal soldering head to solder a wire to the head of battery. There are some videos on RUclips about how to do it. Good luck to all of you!
Thank you!
Very different from other RUclipsr. I will try your process
I'm on my second one. After 2--3 years the part that the brush head slides onto becomes worn so the head vibrates when it should be snug. This reduces the orbital action significantly. Time for a new brush. I noticed it on my first one when I removed the head every time. I thought not removing the head would prevent this problem but it doesn't. I have it wrapped with electrical tape now.
Thanks for this mate. This is on the agenda for tomorrow.
Good luck!
@@PowerOn- Update - Went well. I got a battery with tags already spot welded on so it was super easy to do.
I like how you honestly fail just to find a proper solution. Great transparency! Thx 🙏
I swapped a type 3756 with an eneloop aa. The original battery was shorter, so I had to cut some plastic bits, but it fits. I soldered the AA battery with the old metal bits.
Excellent video. Thank you.
Thank you. I have changed the battery and it works perfectly
Well done Emmanuel,. Another toothbrush saved from landfill!
Thanks mate, still an accurate solution, fixed our toothbrush.
Thanks for the feedback Ton.
I have replaced my battery and you have saved my 28 teeth 😬. Thanks my online dentist.😊
You're the man! Thanks for sharing! 👍
Glad you found the video useful...
Just a note. The toothbrush charging electronics is for NiCd. So not sure if capable to deal with NiMH - potential fire if charged incorrectly.
NiCd and NiMH have different charging characteristic.
Thanks for that, I had a 2009 battery which I just replaced with an enloop, I soldered everything, and came against the same problem: after battery replacement, the unit wouldnt switch on until I placed it on the charger, then removed it. After that everything functioned normally
thank you very much. your vidio is bset of best.
Very simple and useful... From Portugal/Porto, THANK YOU
No problem Rogerio, thanks for your feedback ....from Sydney Aus!
Interesting, mine that looks similar has a NiMH battery according to the recycling label.
Yes, they changed, I think due to the fact that NiCd have been banned in a lot of countries. Luckily the charging voltages and current algorithms are the same so they can be used interchangeably
thanks dude, it's so helpful video for all of us. greetings from Turkey :)
And hello from Australia!
Awesome, thanks a lot for this tutorial!
No problem Mihai - thanks for your positive feedback, much appreciated.
Awesome job just got this brand as a free new member deal at my dentist. Brand new now but this is really fun to watch and maybe attempt to fix when the new battery gets "tired". Thanks and great job.
Thanks for the nice comment TJ.
@@PowerOn- you're welcome
Thank you very much...
it save my time how to do...?
Hi Simon, I just replaced the battery in my exactly the same oral b model with a 2500mah ni-mh battery following your video instructions. From 600mah to 2500mah is more than four fold jump. I wonder if it will also take 4 times amount of time to fully recharge the new battery? I think it is important to get the charge time right to maximise the lifespan of the new ni-mh battery. What did your experience with Sanyo 1900mah tell you? Thanks.
I wish i'd found this and learned about the twist before I did mine! I made far more noise than your little grunt at 1:27! :-D Thank you.
Yes, the dissassembly technique is a bit counter intuative. It reallt feels like the plastic casing is about to break permanently!
@@PowerOn- It does! Not to mention not gouging plier marks in the top plastic bit where the metal shank comes through.
One thing I did notice when I took the innards out is that on the back of the case there's a small hole about an inch up from the bottom of the rubber grip. It’s covered by the rubber but with a bit of prodding you can find it. It seems to be made to engage with a long rod and catch that's part of the motor assembly. When the battery i've ordered turns up i'll try pushing it in while pulling the top off and see if it releases any easier :)
Thank for your sharing. Great video!
Good video. I'm having problems with mine exact the same 2006. I never thought it will last that long.
I MUST TRY REBUILDING MY BATTERY TOOTHBRUSH!
Greate Job. Thx alot. I fixed my own one. In my case after fall down the negative battery bus wire was cut itself. I soldered it and all are work again. :DD thx.
Great work Sylwia!
Thanks for the video! Ilike repairing stuff, not throwing away.
Unfortunately this tutorial seems to be not working for the newer nodel (with timer) They are basicly the same, but those dheads from Braun changed the locking mechanism on the cap. Its now not L shaped latch, but click and done one. Once the ears are pressed down and latch, there is no way to retract them.
Thanks bro .hi from Turkey
before watching this video i had the intention to attempt a battery change on mine but halfway through reconsidered.
Thank you for the video.
Which device are you using at 6:20?
What did u use to stick the metal strip into the battery? And is there any optional that i can use?
Just done mine by following your instructions- the old battery had a corroded positive post and the tag just snapped off but I found that a piece of 5mm de-soldering braid was perfect for the job….I had the same issue with it not working afterwards but a quick sit on the charger and hey presto off and running.Wonder if the battery will now outlast the motor? There must be many hundreds of these brushes in landfill all for the sake of a new battery..
Спасибо вам большое! Всё доходчиво идеально.
thanks Simon, good video
Thanks for the nice feedback Thomas
I almost dumped mine.you saved my toothbrush.thanks!
No problem - glad to help....
Great job!
Thank you for sharing.
A lot of 18650 battery protection chips do exactly the same on low voltage in that they shut off completely. The battery then appears dead until it is boosted by the charging circuit again :)
You're absolutely right....in the heat of the moment I just thought I'd bricked it 🙄
straight push at the end, I made the same mistake. Good Video THX
Thanks for the feedback 😀
Nice video, what voltage of battery did you use?
Hi, i replace the accumulator by your guide. Do you know, what is on the bottom of the plastic engine block? It looks like two spare motor carbons or something. I had the same problem. After the replacement of battery, tootbrush didnt work.
After a few minutes he miraculously worked.
Excellent vid , thank you, I was thinking of trying to convert one into a little dremel !, ps: you forgot to push the pcb through the second dowel !
Interesting idea Stanley
Awesome, mines on its way out, will do this soon, wish i hadn't of thrown my old one away now
Good luck with your repair 😜
Easy to see why no one does this, clearly made to be hard to change
Yes it wouldn't be that hard to make it changeable. It's just the way manufacturers work these days. Also even many of the commenters here just think it's best to just replace the whole unit "it's just cheaper/easier". Oh well I'll do my thing and they'll do theirs
@@PowerOn- Sorry to pick you up on the English but if your going to do public things like youtube..... Its theirs not theres.
@@pancellorum1 edited for YOU'RE pleasure (sic)
Great video. Helpful.
Thanks for the positive feedback.
Thanks for the video. There are some cells on e bay with the tags already welded on. But there are a few different sizes. Any info on the physical size of the cell you removed?
As stated, it's standard AA size.
Thank you very much!!
Thanks for the comment Per!
Thank you very much...broken connector on the battery "-",i was going to trow it away (didn't know how to open the case)
Well done you! It's so satisfying to repair stuff (or at least that's what I feel) 😃
Thnx. Usefull a video...
great video man, thank you.
On a separate point, I recognize that bird song - my favourite! You're in Australia?
Yup, Sydney
Do you know what the base spring is used for?
Well, gunna have to give this a go.. not sure I even get a day out of the charge now. ..
Pretty appalling to go out of their way to make it much more difficult to just replace a battery.
Go for it, if the only other option is the bin then there is not much to loose 😄
Aweseome ! Thanks a lot, I managed to open mine and I'll change the battery for an Eneloop pro. The pcb is red on mine.
1:30 from the perspective of the brush it's clockwise twist and from the perspective of the wrench it's anti clockwise
Great help, Thank you.
Often with items nowadays the hard part is getting the case open without breaking everything.
Good job, but ... Charging time is not longer like in original battery? You exchanged it for a 3x bigger battery ?
Yes - it must be longer although I did not measure it. I usually just charge overnight once every 10 days or so - that seems to be plenty. Thanks for the feedback Marcin.
I change battery in my toothbrush, but the maximum voltage is about 1.2V from original charging board. Did U measure the battery voltage in your toothbrushbrush while charging after change the battery?
Simon, I'm interested in ackuiring a battery spot welder. Do you know where I can get hold of one that doesn't cost a fortune?
You can buy cells with tags already fitted.