[Volasko]

My AGM OEM battery seems to be on its way out. Even after spending time on a trickle charger it can't seem to hold a charge. Being that my car is spending more of its time as a weekend toy and track day warrior I figured going with something lighter would be ideal. Anyone have any advice on this front? I've read that a lot of these low weight batteries don't seem to last more than a year and seem to have some pretty hefty premiums that make them about as expensive as the OEM options. It would be nice to shave 50lbs out of the rear end with something lightweight but not really down to buying a new one every year.