theoldwizard1 wrote:
A pair of 6V golf cart batteries are still the "best bang for the buck". Trojan does make an AGM golf cart battery (T105-AGM) but they are expensive.
The advantages of the GC (Golf Car) batteries are that they are DESIGNED to be run down (as far as 50%) and recharged over and a over and a over again without serious harm.
MARINE/deep cycle and starting batteries need to be kept fuller (75 to 85 percent full) and do not survive as many cycles.
FULL charging is important but as batteries age one symptom is loss of capacity