On 2/26/2008, Jeff Wiseman posted this:
> Gene E. Bloch wrote:
>> On 2/25/2008, TaliesinSoft posted this:
>>
>>> On Sat, 23 Feb 2008 11:59:43 -0600, PLB wrote (in article
>>> <074d7ad6-4edb-42fb-b261-f613aa0496e7@[EMAIL PROTECTED]
>):
>>>
>>>
>>>> I am experiencing problems with my wireless mouse.
>>>> Periodically it looses connection with the iMac; the
>>>> cursor freezes, and I needed to force the iMac to shut
>>>> down by holding the on/off button down. When the computer
>>>> restarts the mouse is functioning correctly. Then later on in the
day
>>>> the same freezing will likely occur again. The battery icon bar
indicates
>>>> that the batteries are OK.
>>>> I have used the computer for several years and never had
>>>> this problem before. Can you suggest what might be causing
>>>> the problem? Are there any diagnostics that I should run>
>>>>
>>>
>>>
>>> I have a Kensington wireless mouse which occasionally fails
>>> to communicate. What is odd is that if I remove and then
>>> replace the batteries all will be well again! Don't ask!
>>> :-)
>>
>>
>> This might be what Jeff Wiseman is experiencing as well.
>>
>> I have just opened the battery lid and rotated the batteries
>> in place (around their long axes, of course), and I got the
>> same results you both have had.
>>
>> I blame it on deposits of oxides or grease or something -
>> i.e., dirt. That's just a guess, of course.
>
> Although I have had that experience where cleaning the battery terminals
has
> helped, it wasn't the case that I was talking about. I had removed the
> batteries and put them back in and it made no difference. It wasn't
until I
> put NEW batteries in that the problem was corrected.
>
> I'm guessing that one of the batteries had a high internal resistance
which
> allowed the open circuit voltage level (i.e., low load) to show a "good"
> battery on the monitor, but when the unit started to operate and the LED
came
> on, the voltage through the bad battery dropped too much. to function
well.
OK, I didn't know you had already tried cleaning the old batteries.
The high-resistance thing is why professional (whatever that means)
battery testers put on a significant load. You just have to test
quickly and infrequently so as not to shorten the useful life of the
battery - sort of like Heisenberg :-)
--
Gene E. Bloch (Gino) letters617blochg3251
(replace the numbers by "at" and "dotcom")
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