From Newsgroup: sci.electronics.repair

yesterday, the sound on the working side went dead!

Could be earwax buildup in the buds.-a Builds up slowly over months at roughly the same - but not _identical_ - rate in each side. That seems
to match your symptoms with the original batteries: first one dies,
then after some indeterminate elapsed time the other dies with no
sound but batteries measure good.

Ed

I'm A bit unclear on how wax buildup on some external surface could in
any way influence the internal electronics?
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From Newsgroup: sci.electronics.repair

I just did a battery replacement on a Sony WF1000XM3 when batt life
started decreasing from 8 hours to about 5, and the new batteries were
giving problems. One lasted three days and then started obliterating all
sound with a high pitched white noise sound. (the other one only worked
for an hour or so each time before shutting down!)

I reported back to the seller (battery dealer in China) who refunded but
then said he had never had any reports of failures in BOTH batteries at
the same time before.

So I put the original batteries back in and the one that only worked for
a few days and then started giving out a high pitched white noise-like
sound now seems to give out no sound at all. It does flash its blue BT
signal , it seems to disconnect and reconnect but there is no sound.

Does anyone have much of a handle on what might have happened during
this exceptionally easy battery replacement? I'm pretty sure I didnt
disturb any cables and anyway, the earbud DID work for a few days!

The Heisenberg effect?

Or must I now put it down to coincidental dying of the bud at the same
time as I changed the battery?
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From Newsgroup: sci.electronics.repair

On 2/25/2025 4:37 PM, Amanda Ripanykhazov wrote:

Sony WF1000XM3

Here's a link that _might_ help: https://www.reddit.com/r/sony/comments/j5kso0/wf1000xm3_poor_battery_life_after_update/

watch out for the line wrap above.

Quoting part of what's posted in that linked message:
"UPDATE 1/25: I replaced the batteries with these https://www.amazon.com/gp/product/B08JCVBRBW/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
which are OEM. The battery life is much much much better. I have to say
they were really easy to replace (it took 10 min max) and relatively
cheap. I suggest this fix for anyone having battery issues still. Thanks
to @CyanoTex who suggested it in one of his replies below. "

Good luck,
Ed
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

I just did a battery replacement on a Sony WF1000XM3 when batt life
started decreasing from 8 hours to about 5, and the new batteries were
giving problems. One lasted three days and then started obliterating all sound with a high pitched white noise sound. (the other one only worked
for an hour or so each time before shutting down!)

I reported back to the seller (battery dealer in China) who refunded but
then said he had never had any reports of failures in BOTH batteries at
the same time before.

So I put the original batteries back in and the one that only worked for
a few days and then started giving out a high pitched white noise-like
sound now seems to give out no sound at all. It does flash its blue BT
signal , it seems to disconnect and reconnect but there is no sound.

Does anyone have much of a handle on what might have happened during
this exceptionally easy battery replacement? I'm pretty sure I didnt
disturb any cables and anyway, the earbud DID work for a few days!

The Heisenberg effect?

Or must I now put it down to coincidental dying of the bud at the same
time as I changed the battery?

Are the battery terminals dirty? If an invisible film of corrosion has
built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly difficult to remove if you use conventional organic solvents and
cleaning agents. The magic substance, which works wonders, is water: a slightly damp cloth or cotton-wool bud softens the corrosion and wipes
it away. Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back
in.
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

On 2/26/25 4:45 AM, Liz Tuddenham wrote:

Are the battery terminals dirty? If an invisible film of corrosion has
built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly difficult to remove if you use conventional organic solvents and
cleaning agents. The magic substance, which works wonders, is water: a slightly damp cloth or cotton-wool bud softens the corrosion and wipes
it away. Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back
in.

No, the terminals on both the new batteries and the old ones (when i put
them back in) seem reasonably clean. And bluetooth is working. I can
see the signal working fine on boTH sets of cells and I can even get a remaining battery per cent reading!

But still no sound.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 2/26/25 4:45 AM, Liz Tuddenham wrote:

Are the battery terminals dirty? If an invisible film of corrosion has built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly difficult to remove if you use conventional organic solvents and
cleaning agents. The magic substance, which works wonders, is water: a slightly damp cloth or cotton-wool bud softens the corrosion and wipes
it away. Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back
in.

No, the terminals on both the new batteries and the old ones (when i put
them back in) seem reasonably clean.

The corrosion is invisible, so a clean-lookig terminal may still have a semi-insulating layer which is too hard to rub or scrape off without
damaging the plating.

And bluetooth is working. I can
see the signal working fine on boTH sets of cells and I can even get a remaining battery per cent reading!

But still no sound.

I thought the problem was fizzing noises, not no sound at all.
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

On 3/3/25 1:24 PM, Liz Tuddenham wrote:

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 2/26/25 4:45 AM, Liz Tuddenham wrote:

Are the battery terminals dirty? If an invisible film of corrosion has
built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly
difficult to remove if you use conventional organic solvents and
cleaning agents. The magic substance, which works wonders, is water: a
slightly damp cloth or cotton-wool bud softens the corrosion and wipes
it away. Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back
in.

No, the terminals on both the new batteries and the old ones (when i put
them back in) seem reasonably clean.

The corrosion is invisible, so a clean-lookig terminal may still have a semi-insulating layer which is too hard to rub or scrape off without
damaging the plating.

>And bluetooth is working. I can

see the signal working fine on boTH sets of cells and I can even get a
remaining battery per cent reading!

But still no sound.

I thought the problem was fizzing noises, not no sound at all.

g
First everything worked for two days after changing the battery. Then
one side started to give the high pitched whine. Then the sound on that
side died. completely.

During this perood of testing, I noticed that the new batteries only
lasted an hour or so.

So I put the original batter daies back in. The dead side is no better
but after 4-5 days, the one working side went dead.
Mind you, - even when dead with no sound, bothbuds report power properly
on the bt side!

Then yesterday, the sound on the working side went dead!
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 3/3/25 1:24 PM, Liz Tuddenham wrote:

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 2/26/25 4:45 AM, Liz Tuddenham wrote:

Are the battery terminals dirty? If an invisible film of corrosion has >>> built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly >>> difficult to remove if you use conventional organic solvents and
cleaning agents. The magic substance, which works wonders, is water: a >>> slightly damp cloth or cotton-wool bud softens the corrosion and wipes >>> it away. Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back >>> in.

No, the terminals on both the new batteries and the old ones (when i put >> them back in) seem reasonably clean.

The corrosion is invisible, so a clean-lookig terminal may still have a semi-insulating layer which is too hard to rub or scrape off without damaging the plating.

>And bluetooth is working. I can

see the signal working fine on boTH sets of cells and I can even get a
remaining battery per cent reading!

But still no sound.

I thought the problem was fizzing noises, not no sound at all.

g
First everything worked for two days after changing the battery. Then
one side started to give the high pitched whine. Then the sound on that
side died. completely.

During this perood of testing, I noticed that the new batteries only
lasted an hour or so.

So I put the original batter daies back in. The dead side is no better
but after 4-5 days, the one working side went dead.
Mind you, - even when dead with no sound, bothbuds report power properly
on the bt side!

Then yesterday, the sound on the working side went dead!

That definitely sounds as though they are failing and the fault might
not have been the battery after all.
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

On 3/3/25 4:26 PM, Liz Tuddenham wrote:

That definitely sounds as though they are failing and the fault might
not have been the battery after all.

Yes, but it seems to be a gigantic coincidence that they both failed separately after I inserted new batteries. And one of them didn't
actually die until I put back the hitherto good cell back in!
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 3/3/25 4:26 PM, Liz Tuddenham wrote:

That definitely sounds as though they are failing and the fault might
not have been the battery after all.

Yes, but it seems to be a gigantic coincidence that they both failed separately after I inserted new batteries. And one of them didn't
actually die until I put back the hitherto good cell back in!

That does seem more than a coincidence but I can't come up with any
obvious straightforward explanation of what could have caused it.

I am not familiar with the batteries but is it possible there are two apparently similar types which differ in voltage or polarity and you
were supplied with the wrong ones? I have come across CMOS chips that
were labelled wrongly, so could that have happened with the batteries?

Another possibility was that, when you changed the batteries, you were
wearing a combination of artificial fibre clothes that generated large
amounts of static electricity - but most modern electronic products are
proof against that.
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

On 3/3/2025 3:10 PM, Amanda Ripanykhazov wrote:

On 3/3/25 1:24 PM, Liz Tuddenham wrote:

Amanda Ripanykhazov <licensedtoquil@gmail.com> wrote:

On 2/26/25 4:45 AM, Liz Tuddenham wrote:

Are the battery terminals dirty?-a If an invisible film of corrosion has >>>> built up on them, it can create all sorts of fizzing noises.

The corrosion from alkaline batteries is hard, tenacious and incredibly >>>> difficult to remove if you use conventional organic solvents and
cleaning agents.-a The magic substance, which works wonders, is water: a >>>> slightly damp cloth or cotton-wool bud softens the corrosion and wipes >>>> it away.-a Clean the terminals on both the battery and in the device,
then make sure they are completely dry before putting the battery back >>>> in.

No, the terminals on both the new batteries and the old ones (when i put >>> them back in) seem reasonably clean.

The corrosion is invisible, so a clean-lookig terminal may still have a
semi-insulating layer which is too hard to rub or scrape off without
damaging the plating.


-a >And bluetooth is working.-a I can

see the signal working fine on boTH sets of cells and I can even get a
remaining battery per cent reading!

But still no sound.

I thought the problem was fizzing noises, not no sound at all.

g
First everything worked for two days after changing the battery.-a Then
one side started to give the high pitched whine. Then the sound on that
side died. completely.

During this perood of-a testing, I noticed that the new batteries only lasted an hour or so.

So I put the original batter daies back in.-a The dead side is no better
but after 4-5 days,-a the one working side went dead.
Mind you, - even when dead with no sound, bothbuds report power properly
on the bt side!

Then yesterday, the sound on the working side went dead!

Could be earwax buildup in the buds. Builds up slowly over months at
roughly the same - but not _identical_ - rate in each side. That seems
to match your symptoms with the original batteries: first one dies,
then after some indeterminate elapsed time the other dies with no
sound but batteries measure good.

Ed
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: sci.electronics.repair

On 9/16/2025 10:17 AM, Amanda Ripanykhazov wrote:

-ayesterday, the sound on the working side went dead!

Could be earwax buildup in the buds.-a Builds up slowly over months at
roughly the same - but not _identical_ - rate in each side. That seems
to match your symptoms with the original batteries: first one dies,
then after some indeterminate elapsed time the other dies with no
sound but batteries measure good.

Ed

-aI'm A bit unclear on how wax buildup on some external surface could in any way influence the internal electronics?

Nothing to do with the electronics. The wax blocks the small
hole in the earbud where the sound comes out.

Ed
--- Synchronet 3.21a-Linux NewsLink 1.2