Multiple postings re: batteries finally got my attention and made me check electrolyte levels in all of our family vehicles... much to my horror, everything I owned needed fluid! ...Topped 'em all up with distilled water and put them all on the charger to rejuvenate the plates... Hopefully, this will extend the life of these things a bit... Bottom line: check the fluid levels in your batteries! I am very picky about everything else on my cars, but have just totally forgotten to do this over the years!