laknox wrote:
JCasper wrote:
So, given the same exact draw, how much longer will a pair of T-105 last compared to one Trojan 31-AGM? I'm asking this because it would be about the same cost for batteries.
The capacity of one T-105 is rated at @25 Amps 447 minutes
The 31-aGM is @25 Amps 177 minutes
Does this really mean I'll get 270 more minutes out of them?
The "standard" to compare to is amp-hours and the 20-hour capacity is the one that you'll see most often. Given this, the flooded cell T-105 is 225 a/h while the 31-AGM is only 100 a/h. Even 2 of the 31's would only give you 200 a/h, less than 2 T-105's. The T-105 AGM loses a bit, being 217 a/h, but the lower maintenance, as well as its ability to drop to a lower charge level without damage, might make it a more desirable alternative to the 105 wet-cell. I'll be addressing this myself when I get a new FW, that's for sure.
Lyle
What frightens most away from the AGM is the price. Yes, they are high but all factors have to be considered. I have a 4D Lifeline AGM. Been there since spring of 2009. Expect it to see 2018 without issues. Try getting that lifespan out of a wetcell.
