Wow! You have skills sir. That was precise and smooth the way you took it apart and put it back together. If that was me I would’ve broke it prying the buds apart in the beginning. Lol.
Thanks! I bought the battery and some T9000 glue off of eBay coming to under $30. Was able to replace the battery in 30 minutes. The most difficult part was getting the case apart without marking up the plastic. I have spudgers, but ended up resorting to a sharp kitchen knife like another commenter suggested. I heated it with a hairdryer for about 30 seconds while rotating it around. It took a few tries but I was able to get open.
This video saved me so much money and frustration. Left earbud had that battery draining issue after the update and it got so bad that it died after 10 minutes playtime. Sony support was no help at all, only citing standard bullshit that it's normal that battery charge may differ between left and right (ya maybe for
its about the software, not the batteries... since 1.4.2 they started to drain faster. But usually the right one dies quicker. So its been the last pair of headphones i bought from sony.
@@slaxxTB I have the exact same issue. I thought it was because I tend to use the right one by itself sometimes. They degrade very quick. I went from having 4 hours to have 2 hours or less in a few months, then finally the right one died completely.
Sony is fucking atrocious. In no world should it be acceptable for people to spend upwards of $300 for their earbuds to die so fast. I've been using mine for a little over 1 year, never had any issues and the battery on them were amazing, after the latest firmware updates however I've been facing the same issues as all you people. My leaft earbud will go from 100% to 20% in about 2 hours whereas my right earbud will still be at about 80%. I also noticed the left earbud overrheating when charging. This is genuinely unacceptable, and sadly by now the warranty has expired so I can't ask for any replacements. FUCK. SONY.
Great video, saved my buds. You can put the earbud in a water and heat proof plastic bag and then lower the bud and bag into boiling water for a couple minutes to soften the glue instead of a heat gun. Also the contact cleaner isn't needed to remove the battery glue, just use a razor and go really slow so you don't cut the center contact. After that the glue peeled off easily and I was able to use t9000 and just hold the contact down with finger pressure until it dried.
Excellent video, i've seen a few others but this one was the clearest to follow. I saw a suggestion somewhere about squeezing the sides after you heat it and that really helped get a spudger in there without gouging it all up.
Thank you for this video! I came here from the walkman blog amaizing article on this battery replacement. Their instructions are great but seeing it in video helps a lot!
Thanks for this. Replaced my XM4 batteries and found out you dont really need to remove the small ribbon cable. Mine was too stuck so I ended up carefully removing the battery from below the two ribbon cables and central PCB. Now I can't quite seem to find a perfect glue to hold the two plastic pieces back together! 😂
That's good to hear, might have to do the same soon unfortunately. Left side is starting to die quick and Sony might not replace my set since I apparently bought a refurbished pair.
@@oricebucket it use to charge to full sometimes, then would die within 40 min. I changed the battery now though, same way Yen did in the video. Works great now!
Bought a secondhand non original set (only realize when i got the set). Sony Service Centre in Johor, Malaysia says if it's original set, HQ does offer one to one exchange of the earbuds for batteries draining issue. I would have had to buy a new set if it wasn't for this video. Thank you so much.
I am in indonesia , bought it from overseas which has UAE sales printed. Battery drain after 1 year guarantee expired. How could yo know it is recondition or second hand?
@@izizree even passed warranty unit are entitled, but I supposed only certain batch. You should definitely try your luck if you are having the same problem
Hi, could i check what is the pincer with the plastic tips you used? The yellow plastic to remove the contact points internally and finally the cleaner in your red spray? Many thanks
I'm curious if the battery in the actual wf 1000xm4 case can be removed easily. I looked at a video on the prior model and the battery is aoldered to the board
Great video!! I have now done both sides. The biggest challenge is getting the ear buds open, once you are inside, it's pretty easy with the right tools. The big question. How do we extend the life of these batteries? I'm one of those who charges my iPhone and apple watch ultra to no more than 80-85%, to reduce the wear on the battery's. Unfortunately, I do not think you can set the charging time of the Sony ear buds.
Hello, could you provide a list of the necessary tools, required to perform this operation? Ideally - an iFixit set, with which one can execute this. :)
Hi. 1 -What temperature should I set in the hotair? Can you blow with a regular heat gun? 2- Are these ZeniPower Z55H batteries from ali recommendable in your opinion? Great presentation of battery replacement.
Please tell me what temperature and what air flow were set on the hair dryer and the warm-up time? This is very important information so that everything is neat!
Great job and instructions! But did you mount Varta 3.7V battery in XM4? Not soo good idea. XM4 uses 3.85V batteries. Mounting 3.7 will decrease life of battery and working time for the earphone.
Question, at 2:10 there is what looks like an adhesive + insulation on the PCB, what can I use to replace that? I didn't force it but I kinda messed it up thats why i'm trying to look for replacement for it. Or would it be ok to install without that?
You need to use double-sided tape on that side, and there is a metal contact piece in the middle that needs to be dug a hole, which needs to be in contact with the underlying battery to form a path.
@@Xyanel The main thing is to be sticky enough, 3M commercially available double-sided tape should be sufficient. I myself use a specific 3M model: 9448 tape
1. You don't need to remove small ribbon from PCB on battery, just use heat and alcohol, carefully peel off PCB from battery and reuse adhesive (careful in case the battery is swollen as it may blow with heat) 2. In my experience using B-7000 glue, the repair didn't work long term as there was not enough adhesion and the buds opened over time, i needed to remove the old seal/adhesive (black tacky stuff) and put the glue in its place. 3. Please not this music 😂
Hi, do I have to use the falcon 530? Or is it possible to do without it? In theory, it needs just a little bit so that it is possible to fix the battery back and so that the contact does not disconnect.
Is it possible to supply VARTA CP1454 A3 The dimensions of CP1454 are 14.1*5.4MM, therefore the marking is appropriate. The fact is that the capacity of the VARTA CP1454 A3 is 40% higher than the original, and accordingly, theoretically, the headset should work longer! Will the VARTA CP1454 A3 fit into the connector, given that the height is the same and the diameter is 2 mm larger?
Those are the metal contacts of the positive and negative poles, which are raised a little higher to make the positive and negative poles contact better; but be careful, the metal is very soft.
if i mistakenly broke the negative pole you speak of, can I do a patch (replace the snapped off pole) with some fine copper wire, as long as it touches the pole plate and battery negative side?@@NightWarJET
If you don’t have a heat gun at hand, you can also use a hair dryer instead. Be sure to heat it up, for fear that the internal glue is too sticky, and the parts will be broken when you remove it.
Can I use a hair dryer ? Is this battery as powerful as its original battery and it is rechargeable ?? What happens if you use varta CR 2032 battery ?? Please answer me quickly . 😍😍🇹🇩💙
@@NightWarJET Thank you...Ordered. Another question, what is the black glue that Sony uses to hold the battery? FYI, I have successfully removed the old battery from my right earbud, replace with new one (same ZeniPower Z55H 3.85v as stock) and closed it up. Its quite the project!! It helps to have a lighted desk magnifier, heat gun, the "right tools", and the proper glue to get this project moving along, and most importantly, patience..For those of you out there that think this is impossible, its not. Just keep working at it "carefully", and try not to use metal tools, use plastic picks and priers, and it will come apart. Use heat sparingly! I had 3 cups of coffee before I tackled this project (not recommended to drink coffee before taking this task on), as my hands were shaking the whole time..LOL. I am, however curious as to what that black glue / adhesive is, that Sony uses to hold the battery in place.
and I had a cup of tea under the table and the headphones on the table, and with a sharp movement of the mouse I pushed the earpiece and it fell into the cup, dried it out, although the protection level is ipx4
great job! I have a question, in the beginning I have battery drain issue and the battery life only can hold about 10 minutes in maximum, now it's overheating everytime I charge it, will my problem solved with changing the battery?
I suggest you ask for a replacement from Sony. Mine also had the same problem, battery drain extremely fast and getting hot when charging in the case, it also drained the case's battery down to 0% in less than 6 hours. After some research, looks like it may be caused by earlier batch of hardware coupled with a problematic software (firmware version 1.4.2 onward). If those really are the cause, I'm afraid replacing battery would not be able to resolve your issue.
@@NightWarJET Yes, but it didn't fix it. I've been reading up and this is a very common problem (even with new ones) and they all ended up using warranty. So I guess I got very unlucky with mine and trigger the issue
Heat the heat gun along the seam for about 7-9 seconds, use a relatively thin disassembly tool to pry it open, do not disassemble it forcibly if it is not heated enough.
Probably there will be a problem of low power and and less battery life because of the difference between the original and the new ; old : 3.85v , 0.29wh vs varta : 3.7v , 0.2wh 2:28
I wondered about that myself. I've just replaced the dead OEM cells in my buds. They had 163 hours of use. I had no issue with them until firmware v1.4.2. To replace them I used the same Varta 1254 A3 cells used in this video. It turns out that the Varta 1254 A3 is rated 3.7V, 77mAh (0.2849Wh). With "LDAC/DSEE:Off/NC:On" settings applied the right bud shut off at 4h:57m with 3% still left in the left bud. With those settings Sony rates battery life at "max 5 hours". I'm happy with the swap.
@@NightWarJET if you use T-9000 and would need to replace the battery again in the future would you still be able to access it? or would it work like super glue that once you use it you can no longer separate it?
Hello, I'm trying to solve the battery drain issue, my right earbud dies in 20 min. Do u know what caused this problem? And if I change the battery, Can this problem appear again? I'll wait to your answer Thanks for the video, I didn't see another video on yt explaining how do this.
Top work, good to see a proper battery replacement video. question, what kind of battery life are you getting with the varta? it has less voltage and less capacity than the Z55H, is it a significant difference?
@@NightWarJET which cp1254 battery are you using? the A4 version? Since the A3 version is not 77mAh, but ~60mAh. at 3.7v, the batteries might not last as long, not earbud listening time. but the actual life of the battery since you are overcharging it to 3.85v with the case. While it may not be that much of a difference, if a problem arises with 3.7v battery being overcharged too much, it might damage the battery and cause it to explode. Not ideal situation.
After replacing battery, I tried to discharge them, but they are always 100%. After almost 6 hours they are still 100%. It says fully charged. After 6.5 hours they dischargeed. And when I put them to charger case light is green no orange light. What is wrong?
I already change mine, all is well but still it's not charging, it's the right earbud where there is no battery drain issue, I just switch the buttons on the app to make it have noise canceling now it's not even charging even I change the battery, please help
@@NightWarJET before I replace the battery of the right earphone it's all okay, until I change the button of it to have anc because as we all know the left earbud have the anc button, I change it because the left earphone is already having battery problem, so back to the right earbuds I change it and now working I think I will be sending it to some third party fixer thanks for the reply
Do i need to fullt charge the battery after replacement. My right earbud is not on but it has charging indicator when i put it on the case. Please help
Use a three-purpose voltmeter to measure the voltage of the battery. If it is above 3.5 V, it should be able to start the machine. Check whether it is reversed. The metal contact piece cannot be touched. It needs to be adjusted.
"Bluetooth device 2 replaced" announce when i touch sensor function after I replaced battery for left. I tried factory reset but that announcement still occur
Clean the connecting seat of the upper cover and the lower cover with cotton dipped in a highly volatile detergent, and then re-connect it. I'm afraid that you broke some part during the disassembly process.
Wow! You have skills sir. That was precise and smooth the way you took it apart and put it back together. If that was me I would’ve broke it prying the buds apart in the beginning. Lol.
Thanks! I bought the battery and some T9000 glue off of eBay coming to under $30. Was able to replace the battery in 30 minutes. The most difficult part was getting the case apart without marking up the plastic. I have spudgers, but ended up resorting to a sharp kitchen knife like another commenter suggested. I heated it with a hairdryer for about 30 seconds while rotating it around. It took a few tries but I was able to get open.
This video saved me so much money and frustration. Left earbud had that battery draining issue after the update and it got so bad that it died after 10 minutes playtime. Sony support was no help at all, only citing standard bullshit that it's normal that battery charge may differ between left and right (ya maybe for
its about the software, not the batteries... since 1.4.2 they started to drain faster. But usually the right one dies quicker. So its been the last pair of headphones i bought from sony.
When you replaced it with the zen, did it last?
@@slaxxTB I have the exact same issue. I thought it was because I tend to use the right one by itself sometimes. They degrade very quick. I went from having 4 hours to have 2 hours or less in a few months, then finally the right one died completely.
Sony is fucking atrocious. In no world should it be acceptable for people to spend upwards of $300 for their earbuds to die so fast. I've been using mine for a little over 1 year, never had any issues and the battery on them were amazing, after the latest firmware updates however I've been facing the same issues as all you people. My leaft earbud will go from 100% to 20% in about 2 hours whereas my right earbud will still be at about 80%. I also noticed the left earbud overrheating when charging. This is genuinely unacceptable, and sadly by now the warranty has expired so I can't ask for any replacements. FUCK. SONY.
How long did you have to use the hair dryer on the bud? Mine does not seem to want to open.
Great video, saved my buds. You can put the earbud in a water and heat proof plastic bag and then lower the bud and bag into boiling water for a couple minutes to soften the glue instead of a heat gun. Also the contact cleaner isn't needed to remove the battery glue, just use a razor and go really slow so you don't cut the center contact. After that the glue peeled off easily and I was able to use t9000 and just hold the contact down with finger pressure until it dried.
Excellent video, i've seen a few others but this one was the clearest to follow. I saw a suggestion somewhere about squeezing the sides after you heat it and that really helped get a spudger in there without gouging it all up.
Amazing patience and accuracy. Hats off
Thank you for this video! I came here from the walkman blog amaizing article on this battery replacement. Their instructions are great but seeing it in video helps a lot!
Thanks for this.
Replaced my XM4 batteries and found out you dont really need to remove the small ribbon cable. Mine was too stuck so I ended up carefully removing the battery from below the two ribbon cables and central PCB.
Now I can't quite seem to find a perfect glue to hold the two plastic pieces back together! 😂
You can try to stick it with T9000 glue.
Should have listened to you as I ended up ripping my trying to remove it haha
@@abrararifify so what you'll do now?
How is battery backup after replacing batteries?
@@stephensabar1563 My XM4s are like new! Getting full 6 hour sessions with 20-30% charge still left. 12hours total without ANC! I love it!
благодаря вашей инструкции, заменил батарейки в своих наушниках, спасибо. сони что то сделала, что они умирали за 10 минут со 100% до 0%
Подскажите какую батарею поставили взамен старых? Та же проблемы с быстрой разрядкой правого наушника.
@@nurzhanorns3305 Аккумулятор Varta CP1254 A3
Thank you for this. i was about to change both of my batteries!
Thank you for the tutorial ! I was able to replace the battery on my left earphone.
PARABÉNS, MARAVILHOSO (恭喜你，太棒了)😃
thanks for the video! very interesting music choice, I have to say! Great, but unexpected
Thanks. Had left bud battery drain issue. This video helped me to change the battery (from aliexpress). Everything is all good now. 🇳🇬
That's good to hear, might have to do the same soon unfortunately. Left side is starting to die quick and Sony might not replace my set since I apparently bought a refurbished pair.
Mind sharing the battery link from AliEx?
@@kongfujack Does it mean it didnt charge to full?
@@oricebucket it use to charge to full sometimes, then would die within 40 min. I changed the battery now though, same way Yen did in the video. Works great now!
@@kongfujack thanks for the feedback. My problem is that it only charges till 90%. I guess I will change the battery too.
Thank you for your video! Was able to repair my dying left earbud!
Did replacing the left earbuds fix the battery drain issue ?
@@dozieemenike6509 it did! I can see the right bud not keeping up but I feel confident to change it when the time comes.
Bought a secondhand non original set (only realize when i got the set). Sony Service Centre in Johor, Malaysia says if it's original set, HQ does offer one to one exchange of the earbuds for batteries draining issue. I would have had to buy a new set if it wasn't for this video. Thank you so much.
Really bro? Malaysia sony centre offers for one to one exchange? But that must be in warranty is it?
I am in indonesia , bought it from overseas which has UAE sales printed.
Battery drain after 1 year guarantee expired.
How could yo know it is recondition or second hand?
@@izizree even passed warranty unit are entitled, but I supposed only certain batch. You should definitely try your luck if you are having the same problem
Just sent mine to HQ for a replacement after a year of ownership, no warranty for free. SONY Customer Service has been great to deal with
@@ttllvfsh just got mine changed. they replaced left earbud with a new one. i just realized mine is still under warranty. tq for all the info guys
成功了~~
詳細說明的視頻...
太感謝了...
加油~!! Taiwan (성공했어요~~
상세한 설명을 담은 영상..
너무 감사드립니다...
파이팅 대만)
Thank you sir, following your video I managed to change my batteries
Thanks so much for the video!
Hi, could i check what is the pincer with the plastic tips you used? The yellow plastic to remove the contact points internally and finally the cleaner in your red spray? Many thanks
I'm curious if the battery in the actual wf 1000xm4 case can be removed easily. I looked at a video on the prior model and the battery is aoldered to the board
非常感謝你的分享
Which spudger tools did you use? Can you please share the link?
Great video!!
I have now done both sides. The biggest challenge is getting the ear buds open, once you are inside, it's pretty easy with the right tools.
The big question. How do we extend the life of these batteries? I'm one of those who charges my iPhone and apple watch ultra to no more than 80-85%, to reduce the wear on the battery's. Unfortunately, I do not think you can set the charging time of the Sony ear buds.
I'd recommend when you're home to leave them out of the charging case and turn them off using the headphones app
Thanks! It is very help to me!!
謝謝分享
Hello, could you provide a list of the necessary tools, required to perform this operation? Ideally - an iFixit set, with which one can execute this. :)
I need to do that to my black xm4's it was one of the first batches that had battery issues, mine won't charge to 100%.
Thank you very much. 🙏
Hi.
1 -What temperature should I set in the hotair? Can you blow with a regular heat gun?
2- Are these ZeniPower Z55H batteries from ali recommendable in your opinion?
Great presentation of battery replacement.
If you can control the temperature, you can blow it around 80 degrees for nine seconds, and you can search for it on the z55h battery auction website.
@@NightWarJET In my hot air soldering iron, the minimum temperature is 100 degrees C, but I can do it. Thank you very much for your answer.
Has the update that is causing people issues since been fixed?
Please tell me what temperature and what air flow were set on the hair dryer and the warm-up time? This is very important information so that everything is neat!
Maintain 80-90 degrees Celsius for about 8-10 seconds, don't blow on the same place for too long.
@@NightWarJET but i still cant open why?~ alrdy 8-10 sec T.T
what type of glue you used to keep the battery glue to the contacts and the buds themselves?
If the original tape is broken, you can tear it off and replace it with ordinary double-sided tape, and the metal contact piece should be exposed.
Interesting song choice
Gracias!
What came out of the red straw? Is it a kind of solvent? Wd40? Blake cleaner?
530 Electronic Contact Cleaner Spray
Thank you!
Great job and instructions! But did you mount Varta 3.7V battery in XM4? Not soo good idea. XM4 uses 3.85V batteries. Mounting 3.7 will decrease life of battery and working time for the earphone.
The customer has shared the usage time during the test; cp1254 A3 is about 3.5 to 4 hours, and Z55H is at least four to five hours.
Thank you!🎉
Thanks bro another pair saved
Thanks much !
Question, at 2:10 there is what looks like an adhesive + insulation on the PCB, what can I use to replace that?
I didn't force it but I kinda messed it up thats why i'm trying to look for replacement for it.
Or would it be ok to install without that?
You need to use double-sided tape on that side, and there is a metal contact piece in the middle that needs to be dug a hole, which needs to be in contact with the underlying battery to form a path.
@@NightWarJET can you recommend a double sided tape? I just want to make sure I got the right one
@@Xyanel The main thing is to be sticky enough, 3M commercially available double-sided tape should be sufficient.
I myself use a specific 3M model: 9448 tape
You are the best.
Thank you
Wow excellent video thanks
I approve of the sea shanty music 👍 😂
Thanks ❤
1. You don't need to remove small ribbon from PCB on battery, just use heat and alcohol, carefully peel off PCB from battery and reuse adhesive (careful in case the battery is swollen as it may blow with heat)
2. In my experience using B-7000 glue, the repair didn't work long term as there was not enough adhesion and the buds opened over time, i needed to remove the old seal/adhesive (black tacky stuff) and put the glue in its place.
3. Please not this music 😂
Amazing work. Thanks a lot! However, would like to know if you have used a bit WD40 for removing battery cap? Thanks again!
I use falcon 530 to remove glue.
Hi, do I have to use the falcon 530? Or is it possible to do without it? In theory, it needs just a little bit so that it is possible to fix the battery back and so that the contact does not disconnect.
The 530 is used as a degumming agent, or you can dig out the battery without using a degumming agent and paste the residual glue back.
@@NightWarJET ok, thank you
Is it possible to supply VARTA CP1454 A3 The dimensions of CP1454 are 14.1*5.4MM, therefore the marking is appropriate. The fact is that the capacity of the VARTA CP1454 A3 is 40% higher than the original, and accordingly, theoretically, the headset should work longer! Will the VARTA CP1454 A3 fit into the connector, given that the height is the same and the diameter is 2 mm larger?
你好，想請教一下。
1) 1:39 和 7:21 噴的是什麼液體？
2) 4:55 出現的紫色膠水是普通萬用膠還是怎樣的專用膠水？
3) 補回膠水的步驟中，膠水是圍繞蓋邊還是蓋頂塗抹？
剛好右耳的電池故障需要更換奈何是平行輸入不獲保養只能自己動手，苦惱之際幸見此片，還望片主指教。
1. 530電子清潔劑
2.T-9000
3.耳機入耳的那側，塗膠用T-9000膠水，注意用量，避免膠水溢出
4:52有示範怎麼上膠
成功更換，右耳再次滿血復活了。
感恩分享，左電池正快速衰竭中，過些時日就照此片更換，再次感謝🙏。
May I ask what the point of prying that little thing at 2:57 & 7:57 is? It seems necessary but I'm not sure what it is. Thank you!
Those are the metal contacts of the positive and negative poles, which are raised a little higher to make the positive and negative poles contact better; but be careful, the metal is very soft.
if i mistakenly broke the negative pole you speak of, can I do a patch (replace the snapped off pole) with some fine copper wire, as long as it touches the pole plate and battery negative side?@@NightWarJET
I'm struggling to open the earbuds, it should be possible to heat the glue with a hair dryer right? or will i need a heat gun?
If you don’t have a heat gun at hand, you can also use a hair dryer instead. Be sure to heat it up, for fear that the internal glue is too sticky, and the parts will be broken when you remove it.
Thanks your video helped o7
thanks big help
Can I use a hair dryer ?
Is this battery as powerful as its original battery and it is rechargeable ??
What happens if you use varta CR 2032 battery ??
Please answer me quickly .
😍😍🇹🇩💙
You are not able to charge CR2032 battery. It's standard lithium battery, you need lithium-ion battery (Varta CP1254 for example) to charge them 😉
@@djwitek8
Okay, I got it.
I gave it to a specialist and it was changed.
At 0.33, what tool is that, you are using to open the earbud? Is that a "modified" tool?
You can google metal dismantling stick
@@NightWarJET Thank you...Ordered.
Another question, what is the black glue that Sony uses to hold the battery?
FYI, I have successfully removed the old battery from my right earbud, replace with new one (same ZeniPower Z55H 3.85v as stock) and closed it up. Its quite the project!! It helps to have a lighted desk magnifier, heat gun, the "right tools", and the proper glue to get this project moving along, and most importantly, patience..For those of you out there that think this is impossible, its not. Just keep working at it "carefully", and try not to use metal tools, use plastic picks and priers, and it will come apart. Use heat sparingly!
I had 3 cups of coffee before I tackled this project (not recommended to drink coffee before taking this task on), as my hands were shaking the whole time..LOL.
I am, however curious as to what that black glue / adhesive is, that Sony uses to hold the battery in place.
what did u blow on the contact on the battery before removing it ?
530 electronic cleaner👌
and I had a cup of tea under the table and the headphones on the table, and with a sharp movement of the mouse I pushed the earpiece and it fell into the cup, dried it out, although the protection level is ipx4
Hello!! I saw the video you posted. And I'm a Sony wf 1000xm4 user. May I know the information of the glue used and the name of the battery?
Key words, Z55H battery
T9000 glue
大哥，你太厲害了！ 在開外殼時你是用熱氣去除粘膠，但是在取出電池的蓋子時卻用Falcon，請問用吹風機而不用Falcon可以嗎？ 謝謝！
指的是開蓋還是取出電池的環節?
@@NightWarJET 電池的環節，你是用Falcon，但是我住在美國還真的沒看過Falcon，所以問用吹風機吹電池的環節會不會有同樣的效果。如果在兩個禮拜前有看到你的視頻，我就可以到你門市請你幫忙，可惜已經回美了！
@@oeshoe 其實只要拆機手速快，其實不用再次加溫，用撬棒就能把電池摳起來，因為不太建議直接加熱內部，有電池有機板，風險高
the cause of it was the software or faulty batteries? bc if I replace it and it is the software that damaged the batteries, it will happen again.
It is recommended to update the firmware of the earphones first, and try to replace the battery if the battery is still running out. 🙂
great job! I have a question, in the beginning I have battery drain issue and the battery life only can hold about 10 minutes in maximum, now it's overheating everytime I charge it, will my problem solved with changing the battery?
If the earphone gets into water or falls, it will also cause heat. Ten minutes is quite short. You can try to change the battery.
I suggest you ask for a replacement from Sony.
Mine also had the same problem, battery drain extremely fast and getting hot when charging in the case, it also drained the case's battery down to 0% in less than 6 hours.
After some research, looks like it may be caused by earlier batch of hardware coupled with a problematic software (firmware version 1.4.2 onward). If those really are the cause, I'm afraid replacing battery would not be able to resolve your issue.
Can I use spirit or nail polish remover as the degumming agent?
Avoid solvents that contain moisture or that may melt plastic.
I managed to replace the battery on both buds, but the right one now has "white noise" when the NC is activated. Any suggestion on how to fix it?
Not sure what is causing this problem，It seems that the motherboard is faulty, have you tried to reset it?
@@NightWarJET Yes, but it didn't fix it. I've been reading up and this is a very common problem (even with new ones) and they all ended up using warranty. So I guess I got very unlucky with mine and trigger the issue
Is the T900 permanent in case of having to change the battery again?
Spray some 530 cleaner and it is easy to disassemble.
What is the adhesive used? Need a eu equivalent
Try T9000 Glue
nice video, i ak stuck, i am unable to open them, doent matter how long i heat them (tryng not too long), any advise?
After heating, insert the flat blade into the gap to separate the earphones.
Found best temperature to be 125C
What kind of glue did you use?
T9000 glue
Freaking awesome music to go with this! What is it?
Wellerman (Sea Shanty)
Can recommend where i can buy battery international shipping ?
You can search in local google, keyword: z55h or cp1254 A3
I can’t find the 530 electronic cleaner, can i replace it with the wd40 cleaner?
WD40 will leave a lot of lubricating oil, which is bad.
A spray with high volatility and low residue is required.
is it possible to do that without a heat gun? maybe with indirect heat from a stove?
You can also use a hair dryer
Easier to change than airpod batteries
That's right, it's much easier to repair than Apple's AirPods.
can the old battery be taken out without (what i'm assuming is) the alcohol drop?
Heat the heat gun along the seam for about 7-9 seconds, use a relatively thin disassembly tool to pry it open, do not disassemble it forcibly if it is not heated enough.
Probably there will be a problem of low power and and less battery life because of the difference between the original and the new ; old : 3.85v , 0.29wh vs varta : 3.7v , 0.2wh 2:28
I wondered about that myself. I've just replaced the dead OEM cells in my buds. They had 163 hours of use. I had no issue with them until firmware v1.4.2. To replace them I used the same Varta 1254 A3 cells used in this video. It turns out that the Varta 1254 A3 is rated 3.7V, 77mAh (0.2849Wh). With "LDAC/DSEE:Off/NC:On" settings applied the right bud shut off at 4h:57m with 3% still left in the left bud. With those settings Sony rates battery life at "max 5 hours". I'm happy with the swap.
@@propellerhead2000 did the replaced battery hold up?
The one in the movie is cp1254a3, although it can be substituted, but the standby time is shorter
What are you using to seal it back up?
Glue with T-9000 glue, pay attention to the amount, avoid glue overflow
@@NightWarJET if you use T-9000 and would need to replace the battery again in the future would you still be able to access it? or would it work like super glue that once you use it you can no longer separate it?
@Kenneth Ralph u can don't add glue but beware of waterproofing. The left over adhesive should be sufficient if u do not have glue
Hello, I'm trying to solve the battery drain issue, my right earbud dies in 20 min. Do u know what caused this problem? And if I change the battery, Can this problem appear again? I'll wait to your answer
Thanks for the video, I didn't see another video on yt explaining how do this.
If the earphones have been used for several years and feel that they are prone to run out of power, you can try to change the battery.
Is the glue conductive connecting the pcb to the battery?
That black glue is non-conductive
The glue you put around the earbud is non conductive too right?
1:40 What is this liquid and what is it's purpose?
It evaporates quickly... Isopropyl?
The 530 cleaning agent sprayed in the video.
Top work, good to see a proper battery replacement video. question, what kind of battery life are you getting with the varta? it has less voltage and less capacity than the Z55H, is it a significant difference?
Specification:
CP1254: standard voltage 3.7V, standard capacity 77MAH, diameter 12.1mm, height 5.4mm, weight 1.6g
Z55 (1254) 65mAh-75mAh
m.zenipower.com/cn/page.html?id=61
@@NightWarJET which cp1254 battery are you using? the A4 version? Since the A3 version is not 77mAh, but ~60mAh. at 3.7v, the batteries might not last as long, not earbud listening time. but the actual life of the battery since you are overcharging it to 3.85v with the case.
While it may not be that much of a difference, if a problem arises with 3.7v battery being overcharged too much, it might damage the battery and cause it to explode. Not ideal situation.
@@TheWalkmanBlog Most of the headphones I have repaired are A3 version, otherwise they are H55
@@TheWalkmanBlog Explosion should be unlikely, unless the charging overcurrent protection of the circuit board is broken
Dude, I am gonna try your link to downgrade the ver. Before i do this. Thanks for sharing in your blog
What glue did you use?
4:54 T9000 glue
你好，想請問一下：
網路上看原廠配的Zenipower Z55H 3.85v這顆電池太難找了，買得到的幾乎都是3.7v的，這一點點電壓差距使用上會有什麼明顯差異嗎？
另外假如沒有熱風槍，用一般吹風機代替不曉得可不可行？溫度是否足夠把它拆開？
差一點點是沒有感覺的
吹頭的吹風機就能用了，感覺吹上去有點溫熱就可以了，吹太久會融化.
@@NightWarJET 感謝回答，近期逛巴哈影音板一堆人的wf-1000xm4用久了都出現嚴重電池衰退問題，還沒過保的還可以去找sony客服處理，過保了就只能自己找看看有沒有坊間的維修站在修、或自己買電池來DIY維修。
雖然我的還沒出現這狀況，但保固期快過了，電池本來就是消耗品，假如想要延長耳機使用壽命總有一天會需要換，我很喜歡這耳機的聲音，假如哪天它的電池真的不行了也是會希望可以換電池繼續用。
另外充電盒的電池可能也同樣會有壽命問題，不過充電盒似乎比較沒那麼精密，拆裝難度應該會比較低。
I cannot read properly the nr of the Varta one is CP 1254 but what is the next one A something...
A3
After replacing battery, I tried to discharge them, but they are always 100%. After almost 6 hours they are still 100%. It says fully charged. After 6.5 hours they dischargeed. And when I put them to charger case light is green no orange light. What is wrong?
Was it normal before replacing the battery?
👍
What size battery can I use to replace this as well as the charging case?
Either cp1254 a3 or Z55H can be used on WF-1000XM4.
Bro which battery I should use for WF-LS900N? And from where can I purchase it? Alibaba or Amazon..pls help bro
Bro from where i can purchase battery for model WFLS900 N..and battery model pls?
You can find it on the auction website, keywords: model battery
What glue should we use to make it possible to take it apart if needed next time?
You can try B-7000 or T-9000.
@@NightWarJET Hello,
AWESOME video! Can I also use a t-7000 glue? Is it the same as a t-9000 or b-7000?
But music is awesome.
熱風應該用多少溫度吹？。謝謝指導。太多苦主了
熱風槍調90 吹7-8秒
@@NightWarJET 吹過頭會怎樣～
@@DuckHugh 炸給你看😏
@@NightWarJET 那麼誇張！
What glue was used?
T-9000
Слишком рано заклеил, надо было включить на проверку . В друг новые батарейки бракованные и не продержатся хотя бы 5 часов
What was the fluid you used to remove the board section from the battery?
The one on the video is 530 electronic cleaner.
I already change mine, all is well but still it's not charging, it's the right earbud where there is no battery drain issue, I just switch the buttons on the app to make it have noise canceling now it's not even charging even I change the battery, please help
Excuse me, is it the left earphone or the right earphone that cannot be charged? What is the problem before replacing the battery?
@@NightWarJET before I replace the battery of the right earphone it's all okay, until I change the button of it to have anc because as we all know the left earbud have the anc button, I change it because the left earphone is already having battery problem, so back to the right earbuds I change it and now working I think I will be sending it to some third party fixer
thanks for the reply
What sort of batterie do you need ?
Z55H
Do i need to fullt charge the battery after replacement. My right earbud is not on but it has charging indicator when i put it on the case. Please help
Use a three-purpose voltmeter to measure the voltage of the battery. If it is above 3.5 V, it should be able to start the machine. Check whether it is reversed. The metal contact piece cannot be touched. It needs to be adjusted.
Thank you for the reply. Apparently when i glued the earbuds the motherboard was not properly intact so I had to open it again
mine is flashing when you put them into the case too but not turning on after i unplug them. so did you open it again and checked the connections?
@@burackbb yes i have to re open it and re aligned all the part and connection. Working like a charm now
@@nathanielangelojancamacam7584 ok i will try that
can't open the shell,how can I do that without warming it ?
There should be a hair dryer at home, right? A hair dryer can replace a heat gun. But it can't be blown for too long.
@@NightWarJET yes done,with a little scratch here and there
How did you get it to open?? Ive been stuck for a day trying to pry it open but no luck
how u open it? Heated the ear buds and using a negative screw driver?~~
"Bluetooth device 2 replaced" announce when i touch sensor function after I replaced battery for left. I tried factory reset but that announcement still occur
Clean the connecting seat of the upper cover and the lower cover with cotton dipped in a highly volatile detergent, and then re-connect it.
I'm afraid that you broke some part during the disassembly process.
Can I get an Amazon link to the battery you used?
You can search with this keyword: varta cp1254
@@NightWarJET
Can I use varta cr 2032 ?
Please tell me