I installed a Microsoft Wireless Mouse 5000 using a USB connection. Is there a way to check the battery status. The program I installed that came with the Mouse does not have a tab for checking Battery status as did my old Mouse which was a 2000.

The thw wireless mouse is paired from fabric wirh USB dongle for same mouse. You can't connect a wireless keyboard to it because they are no different frequency. Actually it's hightly improbable that you even could connect the USB dongle of a mouse with another different mouse. Explanations is logical: presumeyou are in a big office whate another 1 users have wireless keyboards or "mice". Now, imaginge the mess if the dongle of your keyboard should control the mouse of another 9 usrs.
Now, it's competely different with bloetooth keyboards and"mice"
USB Dongle for Microsoft Wireless Keyboard and Mouse 5000

You probably checked this but have you got good batteries in the mouse? Even batteries with half charge sometimes won't pair.

There are little connection buttons on the mouse, keyboard, and sometimes the reciever, press those.

Replace the batteries with new ones.

Not really a code, just first press button on top of your receiver and then the button on the bottom of the mouse. The receiver LED should stay green when they are connected. If this does not happen check that you are using IntelliPoint Mouse Software. See more:
https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/microsoft-wireless-laser-mouse-5000-v10-model-1058/692bf1f8-ce34-4937-8c8f-a78cff379787?rtAction=1483615029455

Should be two parts to this mouse. one part will go into the usb port to communicate with the mouse, and the other part is the one you use. If you have both parts then check the batteries in the mouse, if you didn't get both parts then you have to go buy a new mouse (preferably the same) and you will have a spare mouse.

Replace the batteries, look under the mouse you should see a removable cover, the batteries should be in there.

I suppose there is a reset button on the keyboard or the software provided so I suppose it could be possible, I don't know.
I use a Microsoft Wired Keyboard...
But Best of luck.

Deleted the mouse from bluetooth and then added again.found info at
http://support.microsoft.com/kb/894035/#top

Is this a Microsoft Wireless 5000 Mouse? The battery plate should be on the bottom of the mouse to take off to put in the batteries, similiar to a TV remote contoller. And it can be latched pretty tight.

Included a Youtube video of someone taking the battery out of his mouse.

Normal 0 Go to Control Panel and click on the Mouse icon.
Then select the Mouse button you need to program.
Hope this helps. Bud