> I have never used these particular batteries except in wee units, and
 > may soon retire the 8 year old wet battery from our invalid scooter/
 > garden tractor.
 > 
 > Surplus UPS gels are increasingly available up to 12v 38 amp hours.
 > 
 > Will someone please quote makers' recommendations re:
 > 
 > 
 > * Equalising [boost charge] as a maintenance routine
 > 
 > * Testing of discharge capacity
Alec,
 Although I don't know the manufacturer's recommendations, I've never heard 
of a need for equalizing those gel-cell batteries. They're commonly used in 
UPS units for computers, and those things have no provisions for equalization 
and the batteries usually last 3-5 years in that application.
                                      >
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