"Phil Allison" wrote in message
...
whit3rd wrote:


Is it worth replacing the battery just in case

Those batteries have a ten-year life. If it is ten years or more old,
and you need a UPS, just buy an APS replacement battery. They
recycle the old one for you...



** It's just a regular SLA battery ( aka gell cell) - right ?

IME you are lucky to get more than 2 years out of one, specially when
abused with massive, high current, short term discharges as here.

High current will take a toll - but the batteries last longer if you have
frequent outages.

If its only ever float charged; the distilled water eventually gasses away -
the more concentrated H2SO4 left behind sulphates the plates.