Re: Uninterruptible Power Supply questions



On Sun, 22 Jan 2006 14:03:10 GMT, "Michael Ware"
<mware@xxxxxxxxxxxxxx> wrote:

>Because.....?
>
>"Gerard Bok" <bok118@xxxxxxxxx> wrote in message
>news:43d38ed1.11761352@xxxxxxxxxxxxxxxxxxxxxx
>>
>> NEVER EVER connect batteries in parallel!
>>

Because no two batteries have exactly the same voltage.
But they do have a very low internal resistance (well, inititally
at keast. Connect them in parallel and both the internal
resistance and the temperature rise sharply ;-)

The resulting current is delta U/R or a small voltage over a very
low resistance. Which will still yield a huge current!

--
Kind regards,
Gerard Bok
.



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