Braun Series 3 Electric Razor disassembly and battery replacement (original and AA NIMH batteries)
Вставка
- Опубліковано 23 сер 2024
- How to disassemble and replace old batteries in Braun series 3 electric razor. How to disassemble Braun series 3 electric razor. Braun series 3 electric razor 360s-4 disassembly. Braun series 3 electric razor 360s-4 battery replacement. Braun series 3 electric razor AA NIMH batteries. How to upgrade Braun electric shaver to NIMH AA batteries. How to lubricate Braun razor. Braun Series 3 disassembly. How to repair Braun Series 3 electric razor. Braun Series 3 flashing red LED indicator. Braun Series 3 red error indicator.
Monetize your Clicks and Downloads: publisher.link... • LINKVERTISE One of the...
Please Support Me on PATREON: / 2013electronicscomputers
Affiliate links:
Original FDK batteries: alii.pub/6yt5om
AA Panasonic Eneloop batteries: amzn.to/3PsqqXY
AA Amazon Basics batteries: amzn.to/3pl8Z0X
iFixit Tools: amzn.to/3P2OnEX
Braun oil: amzn.to/3C6C2wR
Cheap soldering kit: amzn.to/363yppR
Soldering Iron: alii.pub/6wt7fo
Soldering Iron Stand: alii.pub/6vnifd
Soldering/Repair Mat:
amzn.to/3q07HIZ
alii.pub/6g41jp
Amtech FLux: amzn.to/3QWMEFG
Rosin Flux: alii.pub/6wt434
Solder: alii.pub/6xt10g
Solder Wick:
amzn.to/3RIDT2O
ali.pub/53b163
Braun Electric Razor for Men, Series 3 310s: amzn.to/3QOPBoQ
Braun Electric Razor Series 3 replacement Foil: amzn.to/3dAnco4
My 340-s couldn't last for a shave after 10 years. I Saw your video and I did it in 20 minutes with simple rechargeable AA. Saved me 75 euro for buying new one. Thank you
Nice work! I'm happy to help.
Thanks! Fixed my shaver after 15 years in use! Perhaps, now this thing will outlive me :)
Fantastic! I'm happy to help! yeah, Braun stuff is perfectly serviceable and long lasting.
Thanks so much! Your instructions were very clear and easy to follow. My razor was 10 years old before the batteries completely died, and I’m happy that it was so inexpensive and relatively simple to add at least another 10 years to its life!
I'm glad I could help you! Thank you for the comment.
This is an excellent tutorial. My only addition would be after 2:05, before replacing the piece containing the button, is to press down on the silver piece you rotate back to get at the battery circuit board. (That's the actual switch the button unit presses down to complete the circuit). If you don't see the red LED flashing on the circuit board, the circuit board isn't properly aligned with the two contacts.
I didn't try this the first time I replaced the battery board, and proceeded with the next steps to attach the button plate with the 6 screws. Then I thought to check whether I'd installed the batteries correctly by pressing the button. When I did, there was no flashing red indicator. So, I had to reverse course, remove the screws and reinstall the battery board again. This time, I pressed the silver piece, the red LED flashed, and I knew I'd installed the battery board correctly.
Testing the battery board connection early, may save you a lot of time going through additional steps only to discover the battery wasn't connected properly.
Great job. Thank you for the comment!
My twelve year old son and I were going to do this together, but your video was good enough that he took over the project and did this, and on a more complicated Braun with more screws. Spasibo!
I'm happy to help!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Thanks a lot for you excellent video. It was very easy to follow it and do the replacement myself ! Another 8-10 years of life for my Braun Series 3 - avoiding garbage and using tools longer helps the environment!
Great job! I'm happy to help!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
I'm completely non-technical... Seriously, but even I managed to change the shaving head and battery. The only thing that was unclear was the beginning how the springs should sit. Check this extra carefully. Thanks from Sweden. You made me save 70 $
AA VARTA 2-PACK 2100 MAH Worked perfectly 7 $
Great job! I'm happy to help.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Now it's been several months and what you say has never happened to me. I am satisfied with TS's advice@@alexstrong6976
Very clear and helpful. Easy project to prolong the life of an otherwise perfectly fine shaver. Thanks!
Glad it was helpful!
Fantastic instructions, super clear and concise! Thank you for the video!
You're very welcome!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
👍 Thank you, I had replaced the batteries in a Braun Series 1and found it wouldn't do anything. 😒 Your last step of connecting the charger saved my day!!
Glad I could help
Imagine if it didn't need a full disassembly to replace the batteries...
In other news, the video is 10/10. Though as far as repairs go, this is pretty simple, but I wish companies wouldn't make maintainance needlessly complex.
Thank you for the comment!
I add my thank you to that of many others... great video that made the repair super easy. The tip on the use of standard AA NiMH batteries was also of great help. Now I can shave again! 😀
I'm happy to help in fixing your Braun razor.
Just a tip to anyone watching this with a 3070cc, you don't need to disassemble the top section (removing the clips), just take the screws out and the top section will pry off. When reassembling just make sure the little rotator coming off the motor is straight up and down (it has an offset pin) , and put the little piece that sticks out (for the trimmer) in first at a 45 degree angle.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Thanks so much too, my razor thanks to you alive again, more than ten years old, so useful your video, short, easy understandable, and saves money.
Glad to help
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Nice! I don't own this shaver anymore, but I like things that are (relatively) easy to repair by yourself.
Agreed!
Awesome Video, explains well how to do. here my 2 cents:
1. please pay attention to clean the gaskets and to not loose the o-ring gaskets.
2. please plug into the charger after battery replacement
Thank you for the comment!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
btw when I replaced the batteries at first it still wasn't working. Eventually I worked out that if you short out a chip it resets the battery level and the shaver will work again. The chip is about 4 o'clock to the off/off button (the biggest chip on the board). I just held a piece of solder across the pins and the battery level indicator illuminates. Worked after that.
Very clear. Exactly what I needed. Nicely short.
Glad it helped!
Perfekt und vielen Dank!!
Ich habe damit bei meinem 395cc die Akkus gegen "normale" AA - Akkus mit 2500 mAh getauscht. Vorteile: Kapazität größer und der Preis günstiger. Funktioniert einwandfrei! Die Schrauben habe ich mit einem Torx-Bit T8 geöffnet.
Great job, man!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
@@alexstrong6976 Vielen Dank für die Info Alex und sorry, dass ich die Nachricht erst heute lese. Dein Kommentar ist sehr gut und ich wäre selbst gar nicht auf die Idee gekommen, dass man sich bei dieser Kombination auch Probleme einhandeln kann. Aber es klingt plausibel!! Nach 6 Monaten mit den neuen Akkus möchte ich folgendes Berichten: Bei täglichem Einsatz lade ich den Rasierer 1x im Monat auf. Das ist mindestens doppelt so lange wie damals, als der Rasierer noch neu war! Die Restanzeige am Rasierer stimmt leider nicht mehr. Nach 10 Tagen zeigt der Rasierer "rot", was nachladen bedeutet. In Wirklichkeit rasiert er aber munter weiter und damit die Akkus keine Tiefentladung erfahren, wird alle 4 Wochen wieder aufgeladen (ohne das die Akkus deutlich müder geworden wären). Ich habe also noch gar nicht ausgereizt, wie lange der Rasierer tatsächlich laufen würde. Die "Original Akkus" haben leider keinen Aufdruck über die Kapazität. Sie müsste aber höher sein als 800 mA, allein schon weil es AA-Akkus sind. Trotzdem: Danke für deine Infos und natürlich werde ich beim nächsten Laden mal die Temperatur am Ladegerät checken!
Hi, Mandy thanks for this video. So I could fix my Rasierer. 👍👍
Happy to help!
A quick heads-up for anyone with the waterproof variant (e.g. 380s): the head can be removed as one piece after loosening the two screws at 00:25. There is no need to remove the plastic vibrators or springs. Just continue at 00:47 instead.
Perfect instructions as always. Why did they put those batteries with pins in the first place? To make it less repairable?
Thanks! Kind of but anyway you can use regular AA NIMH batteries and you can use higher capacity ones.
Thanks for the video. It worked perfectly!!
Glad it helped!
Thank you so much! My shaver can work again!
Happy to help!
Thank you so much! I fixed mine.
Great job! Glad it helped.
Great tutorial. I followed the guide exactly on my 350cc-e4 but put in high capacity AA rechargeable 2500mAh batteries thinking this would work better. It did not. The shaver did not re-initialize after plugging in the charger cord. After putzing with the power button a few times to see if I could get it to work, I finally opened everything up again and put in 2000 mAh rechargeables and it seems to like that better. Someone earlier commented in German that they put in 2500mAh with okay results, but I could not get my model to accept them. Maybe the boards are different in different models.
There's no way that board can determine the battery capacity. It should work with any battery capacity. The charge controller can only detect the battery voltage. So I think it has something to do with either critically low charge level or faulty batteries. If you don't have a AA battery charger, I'd put temporary one 2000mAh and 2500mAh batteries and try to charge slightly them and then replace 2000mAh with 2500mAh one.
@@ElectronicsComputers Thanks for your reply, that's probably correct. But I now have to update my prior comment, as things have not worked out.
I initially thought the 2000 mAh was working because I was able to get the shaver to buzz once, with the expected green LED lights. But I tried powering it on again several minutes later, and the shaver no longer responded. The red light came back, plugging it in failed to get the shaver to reset. Instead, I would get alternating schemes of green and red lights when pressing the power button. I opened it up and rechecked the rechargeable batteries which were fine on their own.
I then tried swapping in several other sets of rechargeable batteries, all full charged, both 2000 and 2500mah, and found I was getting the same error. No rhyme or reason why. I ultimately replaced it back with the original worn down batteries and it resumed working.
I'm unsure where the issue is. The LEDs work no matter what battery is inserted, so I don't think it's a connectivity issue. There have been some similar descriptions of people's experiences in the comments, but nothing definitive.
Thank you! This helped me a lot.
Glad it helped!
Awesome work. You now have a new subscriber. Thank you.
I'm happy to help and thank you for your support!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Hello! Is it possible to mod those razors so that they work using main power instead of batteries?
Thank you for this video 🎉
Welcome.
Merci 🙏 depuis la France 🇫🇷 👍👍
Vous êtes les bienvenus!
Thank you so much 👍
Welcome!
Thank you!❤
You're welcome 😊
Thank you so much!
You're welcome!
Thank you very much. It was very clear & concise. As you had indicated the plastic terminals at the head are very delicate & break. One of mine broke & lost a spring as well. If at all where can I get them.
I just have broken mine, too.
Make sure to queeze like shown at 0:26 and DO NOT try to bend the latches. Nevertheless, it still seems to work fine.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
I 😘 love it 😍😍😍 i hope i could upgrade mine braun type 5513 it take 10 hours to fully charge for only 50 minutes of use
You can do it!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Thanks for sharing, very helpful.
Glad it was helpful!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
which ifixit tool do I need to remove bolts? specific size, I wonder.
Thanks a lot! My shaver stopped working I suspect bateries.
Happy to help!
pretty straightforward I found my Braun Series 3 from Germany which had not been turned on in 10 years. I had some of those Panasonic Eneloop batteries on hand so I swapped those in. I did notice one of the vibrating pins was severely bent at almost 30 degree angle after disassembling... wondering what happened there but I believe it was a defect in manufacturing. I only used this razor a couple times because of the poor shave it gave and now I'm thinking that bent pin is why... I straightened the pin using one of my tools.
Great job! Thank you for the comment!
@@ElectronicsComputers Shaved with it today. Shave was still kinda slow compared to my other Rotary shaver. IDK if I'll continue using it but will see!
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
yeah thanks man... this was my hail mary on that razor still didn't shave well. I am using a Leaf Razor and a Leaf Twig right now and have been for a while. @@alexstrong6976
Thank you. I will be able to fully use it again. Older models got 2 NiMH batteries as well?
Most older models use the same AA NiMH batteries.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
@@alexstrong6976 did replace it with 1200 and its working just fine
Thanks - just replaced the batteries in my old 3090cc and it's charging now. Why do they make it so damn hard? Anyway, cheers!
Happy to help!
Im very surprised this can be done it looked sealed in.
Like the poster below ill defo be trying this to bc this razer has done VV good service
All Braun product are serviceable.
Great. Does this method also apply to Braun 380s-4. Looks similar too your model.
Yes, they are identical inside.
Awesome help. Thank you.
Glad it helped!
My Braun 3 suddenly started heating excessively when charging. I have ruled out the charging cord and batteries. Any other simple fixes or is it time to move on to a new shaver?
@@user-cy3uy8mn2n Did the casing of your shaver start getting hot after the battery was replaced, or did it happen while still using the original batteries?
@ElectronicsComputers It was getting hot with the old batteries and now with the new. I have swapped out charging cords which all work fine with a different Braun 3 I have.
@@user-cy3uy8mn2n You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Bought another 10 years for the lion kingdom's Braun.
Thanks for the video I tried using rechargeable batteries but the braun won't charge them
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
I have an older model maybe 15-20 years and still using it with dead batts. It was a gift from my father now I will avoid charging it before every use hehe. Thanks a lot. Current batts are 3110v can I go for less or more what do you suggest?
What's the exact model of your shaver?
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
On the first place: thanks for the great tutorial - the disassembly went well!
I have a problem during assembly:
- I put the battery holder - the shaver works.
- I tighten the plastic part with the switch with the screws - the shaver works.
- I put the rubber cover back: all the lights start flashing and the shaver won't work.
My impression is that everything is squeezed inside and that this is a problem.
Does anyone have an idea?
Here is what is the catch:
You cannot put standard AA rechargeable batteries in Braun 360cc because they are 1mm thicker than original SAN batteries are. The board "feels" that inside is jam and signals it as described above. The solution may be to buy originals, or to try to peal off the outer alu/plastic shell (manufacture label) on the battery and to make it thinner.
ATTENTION: if you completely remove the plastic, a short-circuit will be made even though there is a piece of insulating plastic on the plus pole. The heating is strong and it is possible that the device could catch fire. It is necessary to leave 5 mm of plastic wrap around the upper part of the battery or, if it has already been removed, wrap the top with insulating tape.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
@@markotesic8758 You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Dear Alex, thank you so much for detailed and clear comment from which I can learn a lot.
I put Lidl NiMH batteries 2500mAh, 1.2V in the shaver. For the original batteries, I cannot determine the capacity: the only markings on them are: SAN NiMH 106D(?)V battery 1.800.822.8837. I "matched" the technology (NiMH) and guessed everything else (capacity and voltage). I could not find information on the capacity of the original battery on the Internet. You say it's 800, but to me that seems a little low for an AA battery?
I am definitely an amateur and I am very grateful to you for pointing out the dangers that can be caused by the use of an inadequate battery.
With the batteries I inserted, the device works normally, and I did not feel overheating. It is not worth buying original batteries for an old device, although it would certainly be the best. I will give you feedback if I notice anything strange @@alexstrong6976
How do I know if my battery is the issue? Scenario: Used it to shave. Plugged it in overnight. Picked it up to use the next day and found the body was quite warm, the charging light was not lit/activating, and the razor didn't even make an effort to turn on.
Without a multimeter and checking all critical points, it's impossible to determine what's wrong. Try removing the batteries and replacing them with regular AA batteries just for checking sake. If it works, then replace the regular batteries with rechargeable ones.
@@ElectronicsComputers Thank you very much! I'll give that a try.
Coulda just been a fluke, but I popped in some regular AA batts and pressed power. Razor didn't start, but a red light flashed. I then put the original batts back in and popped it on the charger. Charging light started to blink green, so I clicked power and it turned on. (Thought it was toast, for sure, cause the smell of burnt got stronger and stronger with every layer removed, lol.) Thanks for your video!@@ElectronicsComputers
Does the shaver stop charging when the batteries are fully charged or once plugged in does the shaver stop charging after a certain period of time?
The shaver stops charging batteries when they reach their full capacity.
@@ElectronicsComputers ok thank you
Great video, the batteries in my 3040s worked worse and I decided to replace them but unfortunately after opening the batteries and closing everything very carefully, the razor no longer works.
After the red error LED, I initialize with 5 seconds of power but even if the LEDs say that the battery is full, the shaver does not work. I also tried putting the original batteries back in and nothing doesn't react anymore. (instead, the motor powered directly by the batteries in series with a copper wire works. What could have happened?
Try to turn on the razor when it's disassembled. Check the button and make sure that batteries make reliable contact with the terminals.
@@ElectronicsComputers Thanks. Even when disassembled it no longer works, the LEDs are on and indicate the batteries are charged so I think the contacts are correct. Is there any tamper proof system?
Same here.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
@@salvanunzia9016 You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Great video! Is it okay to replace the NiHM with Lithium Ion batteries? Thanks!
It won't work with Li-ion battery. The nominal voltage of NiMH battery per cell is 1.2 volts and the fully charged battery reaches 1.40-1.48 volts. Those two batteries are connected in series which means that the total voltage is 2.4V and 2.8 when fully charged. Li-ion battery has 3.7 volts of nominal voltage and 4.2 when fully charged. So if you install a Li-ion battery inside it will work at way lower voltage and it will take a couple of minutes to charge it to about 2.8-3 volts and then charging will stop.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
Thanks!@@alexstrong6976
Thanks! @@ElectronicsComputers
I could replace the batteries but now the razor motor immediately starts running and cannot be switched off, red light blinking.
Make sure that internals are properly installed and the power button is not shorted or pressed.
Fantastic video, thank you very much from Spain. I have followed the instructions step by step with no problem at all. I started mounting back when I realized that the new batteries were a bit smaller than the originals, so I inserted a washer to ensure good contact. Then I saw that you bended the lids... my fault, but they were already installed.
After charging, I have used the shaver for the first time, and today I wanted to use it again and the batteries were off. I tried a 5-second reset and they workked, but now I'm charging them again, as they were near to die.
Can it be a problem of the batteries? They are brand new, that I bought for this purpose, 1.800 mAh Ni-Mh. So maybe it's the charge system itself, is it possible?
Thanks again.
Could be faulty batteries or bad contact on terminals with batteries.
@@ElectronicsComputers Brand new batteries. Maybe I have to dissasemble again and bend the lids to ensure good contact. Today I have used it again and it seems better, will see soon.
You cannot replace original batteries with a capacity of 800 mA with batteries with a capacity of 2500 mA, as this leads to constant overheating of the charging unit and its failure; charging highly discharged batteries is especially dangerous. Also, the algorithm for charging native batteries with a capacity of 800 mA does not provide charging for batteries with a much higher capacity, which leads to undercharging and, accordingly, less battery life for the razor. You can easily check this by removing the batteries and charging them in a suitable charger, and then putting them back and making sure that the operating time of the razor will increase significantly.
I finally disposed the razor and bought a new one. Next time I'll try with same mAh batts.
@@gabrielgomez7099 May God grant you to live to see this moment!
Qual chave vc usou?
If you have a 380 wet and dry, don't waste your time as I did as the sides can't be removed.
All Braun devices are perfectly serviceable and can be fully disassembled and reassembled without any damage.
No, on the wer and dry, the sides are glued,@@ElectronicsComputers
@@freddyp4641 From my 310s Wet & Dry I confirm it is not glued. At 0:51, you will need a cutter blade, two or more pry tools, and apply more force to remove the grip.
Hi - sorry I couldn't tell which piece you used to take the screws out - is it the TR8? Thank you!
Yes, T8/TR8 will do the job.