One Month Battery Life MS Wireless Mobile Mouse 4000

I think I have discovered why this mouse is draining every one's battery including mine. lol

Here's what I did which has worked for me. I'm not sure if every mouse has the same issue.

See in the pic, the silver rounded wire or the batt linkage on this particular mouse is way inside due to which the battery's positive terminal does not come in full contact with it, causing the drain. Using a small screwdriver, I pulled it out slightly and reinstalled the battery. Now the battery sits better and the mouse has stopped draining the batt and is working even with batteries it had drained before. Cheers.

I bought a pack of four rechargeable batteries (2500mAh nickle-metal hydride) and use all four in rotation. However I only get a maximum of a 3-5 days from each one and that is with switching the mouse off for all inactivity including overnight.

It therefore appears that the 10 months battery life that Microsoft stats in the spcification of the mouse is grossly over exaggerated. In the UK this 10 month claim of Microsoft's contravenes the Trade Description Act and is therefore illegal here.

I'd like to know on what usage the 10 months is based on as must be i minute per day to attain 10 months!

I have that mouse and it only gets worse with time.  I have to change my batteries about once a week now.  It used to last about a month, it never lasted anywhere close to 10 months.  Sorry I have no solution. 

I can confirm that as in just over a year the battery life went from 2-3 weeks down to just 2-4 days. It really is a dire situation that Microsoft appear to avoid admitting there's a design fault with this product to cause this. Everyone can't be wrong!

However I did find that the only solution is to ditch this mouse and just recently got a Dell Bluetooth Travel Mouse, made by Logitech. I've so far had it one and a half months and the original batteries are still going strong. This confirms what people told me about this mouse when I did my research.

The new mouse (Logitech) is far better than the one Microsoft is burying it's head in the sand with.

On Mon, 26 Jul 2010 19:06:20 +0000, airoff wrote:

I purchased this mouse a few months ago, and use it daily.  I'm very happy with the performance, but not with the battery life.

I am forced to replace the battery every month, almost to the day.

The mouse is used primarily with my desktop system, both in my web development work, and general usage.  I estimate my active use at 8 hours daily, but my systems are powered on all the time.

I have used new name brand alkaline batteries (Energizer, Duracell) and the last 2 months, Energizer Lithium batteries, with no difference.

It's impractical for me to turn the mouse on and off throughout the day.

The packaging claims up to 10 months of battery life - obviously I'm not getting anywhere near that.

I have the latest intellipoint drivers and otherwise my Win 7/64 system is up to date.

Do you have any ideas why I'm having this issue, and what I might be able to do about it?

Thanks in advance - as I said, I love the mouse, but the battery costs are eating me alive!

I've had similar problems with wireless mice in the past. I now use a

wired mouse exclusively, both on my desktop and on my laptop. I know

that some people prefer wireless mice, but to tell you the truth, I

see no advantage to the wireless ones.

Ken Blake