Thank you for showing me how to disassemble. I love this trimmer, and have tried several replacements, and they all suck compared to this one. But with new batteries, its ready for another 10 years!

Great. Thanks for the help guiding how to open it w/o destroying it. Removed and replaced the battery set and all is good again. Couldn't find another trimmer quite like this, reason why I decided to fix it.

Hey thanks. Getting it together was the real chore, but you helped me.

I found this video a couple of years ago & just replaced mine with some cheap rechargeables from Poundland (my equivalent of your Dollar Store). Now I’m back because they’ve already failed. Mine looks exactly the same but it’s got NiMH batteries & far less circuitry inside, no chip or anything, just a small transistor, 4 resistors, the LED & switch. I toyed with the idea of converting it to lithium, but that would be doubling the voltage (which I guess I could get a buck converter to remedy) & I’d have to install a USB socket & charging circuit. A nice little project idea, but I just don’t have the time, so I’ve ordered a proper NiMH pack to go in. These trimmers are so great, they weren’t cheap either. Somehow I don’t think Philips make stuff to this quality anymore.

Thank god I found your video. Thank you for this presentation. It really helps improve my odds.

Good job and great video! I used it to fix a 4045 model that is basically the same. Thank you!

Just put mine back together. Only had two left over pieces, haha. A spring and a small chrome piece. Trimmer works as intended tho. I did put the second spring ad pin where the blue safety guard goes because I noticed it didn’t spring like before. I suspect the other goes to the height adjuster because there isn’t a clicking anymore. Not worth taking it apart. Found the NiCad at Batteries +. They glued them together and added the connectors to match the originals. Cost me $9.00 total. Thank-you! I was about to toss it!

The original manual of a similar model (QT4045) actually does display a battery removal / replacement process (both in text and with images), but those unfortunately prove to be insufficient in practise. It only states you need to remove the plastic sidepieces first, then you can simple split and remove the upper of the inner plastic frame / housing parts by wedging it up. In practise, that doesn't work, as the upper side of the inner plastic frame / housing is held back by that ring and two snap-fits. However, I think you can skip the removal of the screws and motor housing. You can reach those snap-fits without doing so. Thanks for the video.

Bedankt voor het delen, heb mijn scheerapparaat hiermee weer als nieuw kunnen maken. Top

Thanks for this video. Very helpful! I don't have this exact model, but mine looks pretty much the same with a different model number. T780 looks the same, but a different power button and color. 🧔🏻👨🏻👶🏻

I put Eneloops in mine over 10 years ago and its still going strong. I use it till it goes dead, which takes a long time, before recharging.

Thank you foe this video!!!! I've owned 2 of these actually 3 because there was a Tan / Grayish version before this one that was exactly like this model except it didnt have the vacuum feature which is kind of gimmicky anyway. My favorite comb/guide trimmer of all time... gets my beard and hairline shape exactly how I want it. I tried to disassemble my old one myself and basically destroyed it trying to get it apart. Bought a second used one about 3 years ago on eBay and KEPT it charging constantly until I forgot and it hasnt worked in almost a year. Haven't been able to trim my beard the way I want it ever since. Thank God for you putting this video up. One question... im not an electronics guy but I can copy what I see on a KZfaq video. Please explain exactly what voltage/current ect.. rating battery to get and how to wire them in parallel to each other... or whatever it was you said you might have to do. I do understand the difference between NiCad and NiMh though.

Thank you good sir.

Excellent video, do you know the volts / amps for the OE charging adapter?

Tanks ❤❤

When I took the razor apart, the black slider piece fell off along with 2 stainless steel pins and 2 springs. There are two holes about two thirds of the way down the grove that the slider moves in. I'm guessing that the pins go in those holes but I'm not sure if I need to put the pointy end of the pins in the hole or the flat end. I'm also not sure what to do with the springs. How did you put the pins and springs back on the razor? Thanks in advance!

Hello and thanks for this video! I am about to replace a battery in the same razor with a 2900mAh MiHN one. Can you talk a bit how good of an idea the replacement was in hindsight? Is the device still operative and being used? Would you do it again?

I need that fix.

What was the original battery part number or specifications (size in mm length & width, voltage, 2.4 volts I assume)? I found a site on eBay that may be able to get the original batteries.

Hello, thank you very much for your great and helpful video. Only one question can you please share how can I find batteries before I open my trimmer. Can you please write me the model/dates of the batteries. Thank you in advance😊

QT4085

3:20,,, IT'S TOO BAD YOU DIDN'T SHOW REMOVING THE BATTERIES🤔🤔

Whole video os out of goddamn focus.