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Microsoft Wireless laser mouse 8000 blinks red when it's charging

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Ciaron

unread,
Jul 17, 2008, 7:08:09 PM7/17/08
to
Hello, I've been having this problem with my Microsot Wireless laser mouse 8000
where when i place it on its charging mount, its light glows a slow blinking
green, but then begins flashing red until i take it off its charging base. it
works well with what little charge i could give it before it starts blinking
red again, but i hate never having a full charge. I KNOW it's not the wrong
type of battery since i'm using the one it came with, and i know it isn't the
battery connection, because i took the batteries out, cleaned the inside of
the battery compartment, placed them in again as far as it would go, cleaned
the prongs at the bottom and cleaned the charging base, and it still blinks
red after glowing green for a few seconds... any Ideas on what this could be?

Ford

unread,
Jul 29, 2008, 12:28:02 AM7/29/08
to
Same exact problem here. Please let me know if you find the answer.
--
Ford

[sYn]

unread,
Aug 12, 2008, 1:42:10 PM8/12/08
to
Same here, barely had the mouse 4 months.

Oddly enough my other mouse (MS Habu) is also playing up...

Dan

unread,
Aug 26, 2008, 12:20:01 AM8/26/08
to
Has anyone been able to find the answer? I'm having the exact same issue.

Thanks,
-Dan

Filipe

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Oct 1, 2008, 11:35:01 PM10/1/08
to
I've the same problem...

Dan

unread,
Oct 2, 2008, 1:20:05 AM10/2/08
to
Turned out it was the rechargeable batteries - I replaced mine with new ones
and it works great now. Hope that works for you too!
-Dan

"Filipe" wrote:

> I've the same problem...
>
>
> "Dan" wrote:
>
> > Has anyone been able to find the answer? I'm having the exact same issue.
> >
> > Thanks,
> > -Dan
> >
> >
> > "Ciaron" wrote:
> >
> > > Hello, I've been having this problem with my Microsot Wireless laser mouse 8000

> > > where when i place i on its charging mount, its light glows a slow blinking

wrote@discussions.microsoft.com Diana wrote

unread,
Dec 10, 2008, 1:17:01 AM12/10/08
to
i RECENTLY PURCHASED THE Microsoft Laser Mouse 7000 and find that mine also
will charge flashing green the turn to blinking red. The battery life stinks.
I think I am just going to pack it up and return it to Costco and go with
another cord mouse.

Peter

unread,
Dec 11, 2008, 7:27:01 AM12/11/08
to
It does that also if the connection to the charger isn't good. Make sure
it's seated correctly. Invest in some new rechargeable batteries and a
separate charger then you'll always have a supply of batteries.

Peter
Toronto, Canada.

"Diana wrote" <Diana wr...@discussions.microsoft.com> wrote in message
news:EF9E7E28-7D8F-4904...@microsoft.com...

Mike

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Jan 12, 2009, 1:49:01 AM1/12/09
to
Try rotating the battery to ensure that it is seated properly.

squidsquiddy

unread,
Jan 13, 2009, 7:55:54 AM1/13/09
to
Do not rotate the battery, ROTATE THE CHARGER IN YOUR WALL SOCKET!!

This will guaranteed fix it! The charger has no earth pin and hence does not force the correct +/- orientation in the power socket. Unplug the charger, rotate and plug back in.

EggHeadCafe - .NET Developer Portal of Choice
http://www.eggheadcafe.com/default.aspx?ref=ng

VPaul

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Feb 3, 2009, 10:49:01 AM2/3/09
to
I figured it was okay for me to throw my opinion into the pot since we’ve got
people out there performing séances in a desperate attempt stop the maddening
red flashing light. The following is a working theory.

PROBLEM
The charging indicator light on the mouse from my Microsoft Laser 7000
Desktop Set flashes red after placing the mouse on the charger base.

ROOT CAUSE
A. The metal cap on the positive end does not appear to always touch the
contact point.
B. The spring does not appear strong enough to keep pressure on the battery
to ensure the above metal cap always touches the contact point (the spring
actually appears to retract or fall back into the compartment).

SOLUTION
1. Extend battery compartment spring with fingernail, pen tip or other
approved instrument
2. Gently insert battery—be careful not to put too much pressure on spring
3. While holding mouse with nose pointing down:
a. Place battery compartment cover on mouse
b. Gently place mouse in charger
4. Slowly back away from charger

The contact may be enough to power the mouse but not quite enough for it to
charge. Also, after I wrote this I remembered that closing the door to the
binder bin where mouse was charging caused the light to flash red. Then I
thought about the solutions to wrap the battery in paper, rotate it, get a
thicker battery (size is overrated), etc., and it occurred to me that these
all had a similar effect as increasing the pressure and tension of the spring
to ensure the metal cap stayed in touch with the contact point. For the
record, I can see no evidence of a switch/button in the battery compartment.

The best answer may be to find a battery with a bigger metal cap on the
positive end, is slightly longer, or find a spring that will increase the
pressure to the contact point.

Other than this maddening red flashing mouse light—this Laser 7000 desktop
set ROCKS!!! The solid construction and rubber feet on the keyboard make it
the best I have ever used.

--
VPaul


"nLinked" wrote:

> I have the new MS Wireless Laser Mouse 7000 which came as part of the MS
> Wireless Laser Desktop 7000 desktop set.
>
> The mouse battery only lasts less than 24 hours on a full charge. Why is
> this? My previous mouse, MS Wireless Laser Mouse 8000 (which is actually an
> older model despite the number) lasted about a month!
>
--
VPaul

flashingmouse

unread,
Feb 7, 2010, 11:11:47 PM2/7/10
to
The mouse (wireless 8000) comes with a 2100 mA rechargeable battery. If you replace it with a 2500 mA battery (the ones you get in multi-packs at Costco), you'll get the flashing red light every time. The batteries have the same colours, so it's not obvious that they're different models, but you can see the number clearly.

vpaulnospam-outloo wrote:

I figured it was okay for me to throw my opinion into the pot since we???ve
03-Feb-09

I figured it was okay for me to throw my opinion into the pot since we???ve got
people out there performing s??ances in a desperate attempt stop the maddening

red flashing light. The following is a working theory.

PROBLEM
The charging indicator light on the mouse from my Microsoft Laser 7000
Desktop Set flashes red after placing the mouse on the charger base.

ROOT CAUSE
A. The metal cap on the positive end does not appear to always touch the
contact point.
B. The spring does not appear strong enough to keep pressure on the battery
to ensure the above metal cap always touches the contact point (the spring
actually appears to retract or fall back into the compartment).

SOLUTION
1. Extend battery compartment spring with fingernail, pen tip or other
approved instrument

2. Gently insert battery???be careful not to put too much pressure on spring


3. While holding mouse with nose pointing down:
a. Place battery compartment cover on mouse
b. Gently place mouse in charger
4. Slowly back away from charger

The contact may be enough to power the mouse but not quite enough for it to
charge. Also, after I wrote this I remembered that closing the door to the
binder bin where mouse was charging caused the light to flash red. Then I
thought about the solutions to wrap the battery in paper, rotate it, get a
thicker battery (size is overrated), etc., and it occurred to me that these
all had a similar effect as increasing the pressure and tension of the spring
to ensure the metal cap stayed in touch with the contact point. For the
record, I can see no evidence of a switch/button in the battery compartment.

The best answer may be to find a battery with a bigger metal cap on the
positive end, is slightly longer, or find a spring that will increase the
pressure to the contact point.

Other than this maddening red flashing mouse light???this Laser 7000 desktop

set ROCKS!!! The solid construction and rubber feet on the keyboard make it
the best I have ever used.

--
VPaul


"nLinked" wrote:

--
VPaul


"Ciaron" wrote:

Previous Posts In This Thread:

On Thursday, July 17, 2008 7:08 PM
Ciaro wrote:

Microsoft Wireless laser mouse 8000 blinks red when it's charging


Hello, I've been having this problem with my Microsot Wireless laser mouse 8000
where when i place it on its charging mount, its light glows a slow blinking
green, but then begins flashing red until i take it off its charging base. it
works well with what little charge i could give it before it starts blinking
red again, but i hate never having a full charge. I KNOW it's not the wrong
type of battery since i'm using the one it came with, and i know it isn't the
battery connection, because i took the batteries out, cleaned the inside of
the battery compartment, placed them in again as far as it would go, cleaned
the prongs at the bottom and cleaned the charging base, and it still blinks
red after glowing green for a few seconds... any Ideas on what this could be?

On Tuesday, July 29, 2008 12:28 AM
For wrote:

Same exact problem here. Please let me know if you find the answer.
Same exact problem here. Please let me know if you find the answer.
--
Ford


"Ciaron" wrote:

On Tuesday, August 12, 2008 1:42 PM
[sYn wrote:

On Tuesday, August 26, 2008 12:20 AM
Da wrote:

Has anyone been able to find the answer?

Has anyone been able to find the answer? I am having the exact same issue.

Thanks,
-Dan


"Ciaron" wrote:

On Wednesday, October 01, 2008 11:35 PM
Filip wrote:

RE: Microsoft Wireless laser mouse 8000 blinks red when it's charg
I have the same problem...


"Dan" wrote:

On Thursday, October 02, 2008 1:20 AM
Da wrote:

Turned out it was the rechargeable batteries - I replaced mine with new ones
Turned out it was the rechargeable batteries - I replaced mine with new ones
and it works great now. Hope that works for you too!
-Dan

"Filipe" wrote:

On Wednesday, December 10, 2008 1:17 AM
Diana wrot wrote:

i RECENTLY PURCHASED THE Microsoft Laser Mouse 7000 and find that mine also
i RECENTLY PURCHASED THE Microsoft Laser Mouse 7000 and find that mine also
will charge flashing green the turn to blinking red. The battery life stinks.
I think I am just going to pack it up and return it to Costco and go with
another cord mouse.

"Ciaron" wrote:

On Thursday, December 11, 2008 7:27 AM
Peter wrote:

It does that also if the connection to the charger isn't good.
It does that also if the connection to the charger isn't good. Make sure
it's seated correctly. Invest in some new rechargeable batteries and a
separate charger then you'll always have a supply of batteries.

Peter
Toronto, Canada.

"Diana wrote" <Diana wr...@discussions.microsoft.com> wrote in message
news:EF9E7E28-7D8F-4904...@microsoft.com...

On Monday, January 12, 2009 1:49 AM
Mik wrote:

RE: Microsoft Wireless laser mouse 8000 blinks red when it's charging


Try rotating the battery to ensure that it is seated properly.

"Ciaron" wrote:

On Tuesday, January 13, 2009 7:55 AM
Squid Squiddy wrote:

FIXED!!!!


Do not rotate the battery, ROTATE THE CHARGER IN YOUR WALL SOCKET!!

This will guaranteed fix it! The charger has no earth pin and hence does not force the correct +/- orientation in the power socket. Unplug the charger, rotate and plug back in.

On Tuesday, February 03, 2009 10:49 AM
vpaulnospam-outloo wrote:

I figured it was okay for me to throw my opinion into the pot since we???ve
I figured it was okay for me to throw my opinion into the pot since we???ve got
people out there performing s??ances in a desperate attempt stop the maddening

red flashing light. The following is a working theory.

PROBLEM
The charging indicator light on the mouse from my Microsoft Laser 7000
Desktop Set flashes red after placing the mouse on the charger base.

ROOT CAUSE
A. The metal cap on the positive end does not appear to always touch the
contact point.
B. The spring does not appear strong enough to keep pressure on the battery
to ensure the above metal cap always touches the contact point (the spring
actually appears to retract or fall back into the compartment).

SOLUTION
1. Extend battery compartment spring with fingernail, pen tip or other
approved instrument

2. Gently insert battery???be careful not to put too much pressure on spring


3. While holding mouse with nose pointing down:
a. Place battery compartment cover on mouse
b. Gently place mouse in charger
4. Slowly back away from charger

The contact may be enough to power the mouse but not quite enough for it to
charge. Also, after I wrote this I remembered that closing the door to the
binder bin where mouse was charging caused the light to flash red. Then I
thought about the solutions to wrap the battery in paper, rotate it, get a
thicker battery (size is overrated), etc., and it occurred to me that these
all had a similar effect as increasing the pressure and tension of the spring
to ensure the metal cap stayed in touch with the contact point. For the
record, I can see no evidence of a switch/button in the battery compartment.

The best answer may be to find a battery with a bigger metal cap on the
positive end, is slightly longer, or find a spring that will increase the
pressure to the contact point.

Other than this maddening red flashing mouse light???this Laser 7000 desktop

set ROCKS!!! The solid construction and rubber feet on the keyboard make it
the best I have ever used.

--
VPaul


"nLinked" wrote:

--
VPaul


"Ciaron" wrote:


Submitted via EggHeadCafe - Software Developer Portal of Choice
Displaying Popup RTF from embedded Resources
http://www.eggheadcafe.com/tutorials/aspnet/e963940f-f79f-4c18-a801-191b7d398eb0/displaying-popup-rtf-from.aspx

flashingmouse

unread,
Feb 7, 2010, 11:13:03 PM2/7/10
to
The mouse (wireless 8000) comes with a 2100 mA rechargeable battery. If you replace it with a 2500 mA battery (the ones you get in multi-packs at Costco), you'll get the flashing red light every time. The batteries have the same colours, so it's not obvious that they're different models, but you can see the number clearly.

vpaulnospam-outloo wrote:

I figured it was okay for me to throw my opinion into the pot since we???ve
03-Feb-09

I figured it was okay for me to throw my opinion into the pot since we???ve got
people out there performing s??ances in a desperate attempt stop the maddening

red flashing light. The following is a working theory.

PROBLEM
The charging indicator light on the mouse from my Microsoft Laser 7000
Desktop Set flashes red after placing the mouse on the charger base.

ROOT CAUSE
A. The metal cap on the positive end does not appear to always touch the
contact point.
B. The spring does not appear strong enough to keep pressure on the battery
to ensure the above metal cap always touches the contact point (the spring
actually appears to retract or fall back into the compartment).

SOLUTION
1. Extend battery compartment spring with fingernail, pen tip or other
approved instrument

2. Gently insert battery???be careful not to put too much pressure on spring


3. While holding mouse with nose pointing down:
a. Place battery compartment cover on mouse
b. Gently place mouse in charger
4. Slowly back away from charger

The contact may be enough to power the mouse but not quite enough for it to
charge. Also, after I wrote this I remembered that closing the door to the
binder bin where mouse was charging caused the light to flash red. Then I
thought about the solutions to wrap the battery in paper, rotate it, get a
thicker battery (size is overrated), etc., and it occurred to me that these
all had a similar effect as increasing the pressure and tension of the spring
to ensure the metal cap stayed in touch with the contact point. For the
record, I can see no evidence of a switch/button in the battery compartment.

The best answer may be to find a battery with a bigger metal cap on the
positive end, is slightly longer, or find a spring that will increase the
pressure to the contact point.

Other than this maddening red flashing mouse light???this Laser 7000 desktop

set ROCKS!!! The solid construction and rubber feet on the keyboard make it
the best I have ever used.

--
VPaul


"nLinked" wrote:

--
VPaul


"Ciaron" wrote:

Previous Posts In This Thread:

On Thursday, July 17, 2008 7:08 PM
Ciaro wrote:

Microsoft Wireless laser mouse 8000 blinks red when it's charging

Hello, I've been having this problem with my Microsot Wireless laser mouse 8000
where when i place it on its charging mount, its light glows a slow blinking
green, but then begins flashing red until i take it off its charging base. it
works well with what little charge i could give it before it starts blinking
red again, but i hate never having a full charge. I KNOW it's not the wrong
type of battery since i'm using the one it came with, and i know it isn't the
battery connection, because i took the batteries out, cleaned the inside of
the battery compartment, placed them in again as far as it would go, cleaned
the prongs at the bottom and cleaned the charging base, and it still blinks
red after glowing green for a few seconds... any Ideas on what this could be?

On Tuesday, July 29, 2008 12:28 AM
For wrote:


"Ciaron" wrote:

Thanks,
-Dan


"Ciaron" wrote:


"Dan" wrote:

"Filipe" wrote:

"Ciaron" wrote:

Peter
Toronto, Canada.

"Ciaron" wrote:

I figured it was okay for me to throw my opinion into the pot since we???ve
I figured it was okay for me to throw my opinion into the pot since we???ve got
people out there performing s??ances in a desperate attempt stop the maddening

red flashing light. The following is a working theory.

PROBLEM
The charging indicator light on the mouse from my Microsoft Laser 7000
Desktop Set flashes red after placing the mouse on the charger base.

ROOT CAUSE
A. The metal cap on the positive end does not appear to always touch the
contact point.
B. The spring does not appear strong enough to keep pressure on the battery
to ensure the above metal cap always touches the contact point (the spring
actually appears to retract or fall back into the compartment).

SOLUTION
1. Extend battery compartment spring with fingernail, pen tip or other
approved instrument

2. Gently insert battery???be careful not to put too much pressure on spring


3. While holding mouse with nose pointing down:
a. Place battery compartment cover on mouse
b. Gently place mouse in charger
4. Slowly back away from charger

The contact may be enough to power the mouse but not quite enough for it to
charge. Also, after I wrote this I remembered that closing the door to the
binder bin where mouse was charging caused the light to flash red. Then I
thought about the solutions to wrap the battery in paper, rotate it, get a
thicker battery (size is overrated), etc., and it occurred to me that these
all had a similar effect as increasing the pressure and tension of the spring
to ensure the metal cap stayed in touch with the contact point. For the
record, I can see no evidence of a switch/button in the battery compartment.

The best answer may be to find a battery with a bigger metal cap on the
positive end, is slightly longer, or find a spring that will increase the
pressure to the contact point.

Other than this maddening red flashing mouse light???this Laser 7000 desktop

set ROCKS!!! The solid construction and rubber feet on the keyboard make it
the best I have ever used.

--
VPaul


"nLinked" wrote:

--
VPaul


"Ciaron" wrote:

On Sunday, February 07, 2010 11:11 PM
Flashing Mouse wrote:

Flashing red light resolved!


The mouse (wireless 8000) comes with a 2100 mA rechargeable battery. If you replace it with a 2500 mA battery (the ones you get in multi-packs at Costco), you'll get the flashing red light every time. The batteries have the same colours, so it's not obvious that they're different models, but you can see the number clearly.

Submitted via EggHeadCafe - Software Developer Portal of Choice

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shafkatkhan

unread,
Mar 2, 2010, 4:40:30 AM3/2/10
to
There is a button beneath the battery, which needs to be pushed to indicate the presence of the battery, unfortunately the battery is too thin thus the blinking red led, fold a piece of paper a couple of times and stick it between the battery and the button, it will fix the charging issue.

Ciaro wrote:

Microsoft Wireless laser mouse 8000 blinks red when it's charging

17-Jul-08

Previous Posts In This Thread:

On Thursday, July 17, 2008 7:08 PM
Ciaro wrote:

Microsoft Wireless laser mouse 8000 blinks red when it's charging

On Tuesday, July 29, 2008 12:28 AM
For wrote:


"Ciaron" wrote:

Thanks,
-Dan


"Ciaron" wrote:


"Dan" wrote:

"Filipe" wrote:

"Ciaron" wrote:

Peter
Toronto, Canada.

"Ciaron" wrote:

--
VPaul


"nLinked" wrote:

--
VPaul


"Ciaron" wrote:

On Sunday, February 07, 2010 11:12 PM
Flashing Mouse wrote:

Flashing red light resolved!
The mouse (wireless 8000) comes with a 2100 mA rechargeable battery. If you replace it with a 2500 mA battery (the ones you get in multi-packs at Costco), you'll get the flashing red light every time. The batteries have the same colours, so it's not obvious that they're different models, but you can see the number clearly.


Submitted via EggHeadCafe - Software Developer Portal of Choice

EggHeadCafe Chat Chaos in Silverlight Released Today
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N@discussions.microsoft.com Paul N

unread,
Mar 31, 2010, 8:16:01 PM3/31/10
to
I think the solution of replacing the 2500mAH batteries with the 2100mAH
batteries sounds the most likely. MS supplies 2100mAH batteries. I bought a
2nd hand MS 8000 desktop which didn't have batteries. I am having the
Flashing Red light problem when I place the mouse on the charger.
Interestingly though it seems that my mouse gives this signal only when it is
fully charged. I have only used the mouse for a 3 hour run so far but I am
having no problem with the battery running low. I think the cradle charger
works but flashes red when the 2500mAH battery is fully charged. I'll replace
it with a 2100mAH battery and see if this fixes the problem.
Just by the way a lot of these solutions seem a little silly....Rotating the
battery won't do anything. If the mouse is working the battery is connected
so it not a connection issue. There is no battery sensor button. I did like
the discharge battery to clear a charge spike solution but this is dangerous
and can destroy your battery if not possibly cause a small explosion...Fun.
If putting a new perferably Eveready (as supplied by MS) 2100mAH NiMH Battery
in doesn't work I think you have a serious problem...Time for a new mouse.

"Shafkat Khan" wrote:

> .
>

glen...@gmail.com

unread,
Jun 1, 2018, 4:41:20 AM6/1/18
to
This is like a SUPER-OLD thread, but I wanted to put this here for reference:
There is NO battery sensor in this mouse, it does not check if the battery is properly seated.

I've experienced the exact same issues, and thought that the metal half-circle spring thingy was a sensor to check if the battery is in - it isn't!

The battery must of course reach both poles to be working, but it does NOT have to push the metal bracket to a certain limit. It is just a shield shaped after the battery - nothing else.

The sensor you can see on the side, wedged in between the metal is TTF-103, it's a thermistor!

The thermistor needs to be in a certain range for the mouse to start charging, making sure not to overheat the battery. The metal half circle bracket is just to make better contact between the thermistor and battery, but it seems like it is also wearing out the thermistor over time, due to movement.

I love the WED8000 media set, mine is still in perfect condition, except the battery charging issue, so now I wanted to fix it once for all.
My metal bracket actually broke off after me putting paper inside etc to try to fix it (thinking it was a pressure sensor), so I ended up ripping out the whole sensor and cut out the bracket.

A friend of mine has the set to, although a lot more worn it is still fully functional.
(Fun fact, he purchased both set for us for $30 each!! They probably didn't sell well and got a batch for "nothing")

I opened his mouse, desoldered the metal bracket (which is only connected to ground), and then desoldered the sensor, and saw that it was a thermistor and not a pressure sensor. I did some measurements and put his mouse back together.

It's gives 10k ohm resistance at 25 degrees Celcius, so for the heck of it, I soldered a 10k resistor in place of the sensor in my mouse (through the battery compartment - very tight...)

It worked! It now charges as before, but of course without any overheating protection, and is therefore not recommended as a fix, but as a way of finding the issue.

I've ordered myself some TTF-103 sensors, and will be soldering that in place of the resistor, hopefully being able to do it through the battery compartment.

Bear in mind, if anyone else wants to do the same and the metal bracket is intact, you'll have to disassemble to get to the sensor, and then desolder both bracket and sensor, which is difficult.

I cannot recommend this job, because it is difficult, but for anyone that wants to give it a shot, this is how.

As I still won't have the bracket, I'll probably just tape the sensor down to the battery, making better contact. It's not like the battery will be pulled out that often anyways.


In short - the issue is the sensor, or the flexible pcb it is mounted on, that wears and breaks over time. Messing with the battery moves it, and probably gives a good connection again.

When the sensor is disconnected, the resistance is wrong, and it deems it unsafe to charge.

A 10k resistor in its place gives a constant "25C temperature" measurement, but can be dangerous, as charging will not worry about battery temperature.

Hope this can be of interest for anyone else who has replaced their rechargeable batteries etc, but still not been able to use their mouse.

So I repeat, it is NOT a sensor to check if the battery is properly seated, it's a poorly placed temperature sensor - that's it.
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