> Can anyone think of a reason not to attach a car battery in place of the
> sealed battery in a battery backup system?  I've got a few of these
> carcasses laying about because it's always been cheaper to buy a new one,
> but a cheap car battery could breathe new life into them.
> Clearly, I don't
> want to turn it over and spill acid, but think of the backup time
> available!

        I wouldn't bother. Car batteries are not designed to be deep cycled, they
can only withstand a dozen or two deep cycles before being damaged. TTYL

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