mh3860sh wrote:
thanks for the info. what is trojan battery's reputation,reliability?
The Trojan T-105 is the standard for golf carts, the largest application of 6V batteries. Folks in FL are getting the best prices since there are thousands of golf tracks in FL. Unfortunately, they also have the poorest climate for battery longevity. The South is hard on FLA batteries. Up here in the North, the Winter is tailor made for battery storage and longevity. I replaced my original battery in my truck, last year. It was 10 yrs, one month old and not used lightly.
AGM batteries are easier to maintain but discharging them below 50 percent continually, just like a FLA battery, will remove life cycles rapidly. GC2 batteries are more forgiving about this because of the thicker plate structure. Some AGM batteries also require a different charge schedule than FLA so a buyer should know what their charger is capable of and make sure a match can be made.
Presently, I have a bank of three AGM batteries and a bank of two GC2 batteries in my trailer. For storage and typical operation, both banks are paralleled and charged by the solar system. In the future, I may move to all of the same type but I am not experiencing any problems, currently.