People like LSUK should be able to bench charge and tell you the battery state. I suspect that the 25 amp is surface charge into a flat battery, again bench charge should tell you.
Check your clamp meter, then go round measuring loads, and try and do a rough calc to check your usage over the weekend. Will tell you if flat batteries were resonable.
But it will be cheaper to get them checked out properly, than just buying new, or just poking around and hoping.
Brian
-------------------- Kddpowercentre designers and purveyors of fine charging systems for 30 years.
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