Tip & How-To about Dell M787C Wireless Mouse P/N: M787C - Originals

Dell wireless mouse M787C batteries are wired in Parallel not in series Manufacturing error

Hello All, I just received a Dell All in One Computer with the M787c wireless mouse. I installed 2 fresh batteries and noticed after 3-4 minutes one of the batteries was getting warm? I removed that battery and the mouse LED light was still working. SO the M787c mouse was working as it should with only ONE Battery!
I checked wiring of the batteries and found that the Batteries were WIRED in Parallel. Wiring batteries in parallel is not a very good Electrical practice, at all!
I am sure that many owners of this mouse have gone through many batteries because of the miss wiring.
If you mouse does not work with properly with one battery if you are mechanically inclined you can disassemble the Mouse and rewire the batteries in SERIES.
There are 4 screws on the bottom of the mouse, 2 in the bottom underneath the front gliders, and 2 in the top. Happy fixing. Rob

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Mcyman,
Can you please provide more information on your post about the mouse batteries being wired incorrectly? I can then look into the issue.
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maybe the battery?
follow the steps below to troubleshoot the mouse
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Try to Resynchronize your device with the receiver(connector)
Follow these steps.:
Note When you synchronize the mouse or the keyboard with the receiver, put the device near the receiver and put other wireless keyboards and mouse at least 6 feet away.
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1. Make sure that the wireless adapter of your wireless KB and mouse is properly connected to the USB port of the computer.

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