🚀 go-pugleaf

Graham W wrote:
> "Paul Hopwood" <paul@hopwood.org.uk> wrote in message
> news:4bfkc0tp79ta5cir8nvtjas5hejp6961md@4ax.com...
>> "Graham W" <graham@his.com.puter.INVALID> wrote:
>>> It would be worth checking the terminal voltage under charging
>>> conditions to make sure that the death of its predecessor wasn't
>>> down to over-charging. 13.8V is often quoted as suitable for
>>> sealed lead-acid batteries.
>>
>> According to the PowerChute software the UPS itself reports the
>> voltage at 13.85V.
> If on the other hand, the voltage was 14.2V there would be a suspicion
> of batterycide (is that a word?   8�), which would shortly be followed
> the demise of the new replacement.

I'm not sure about this, provided the maximum current isn't succeeded then I
don't think there is a problem, for instance I've often revived sealed lead
acid batteries by putting the voltage up (with a variable supply) until it
starts drawing current then reduced it as it rises to about a tenth of its
rated current. This can revive dead batteries. Sometimes I have to wack the
voltage up to 20 volts or more, before the current increases. I think
overheating (which is fatal) is caused by too great a current (when
charging).



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