Best deep cycle ?

tplife wrote:

westend wrote:

Huntindog wrote:

westend wrote:

tplife wrote:
RJsfishin, I paid $120.00 for my Optima vs. $80.00 for the Costco marine flooded battery, an extra investiment of $40.00 more for my example...and the AGM has far exceeded what I expected for a power source. AGMS are rated to last 2 to 3X longer than flooded batteries, at least according to a lot of their customers. There are too many advantages to list here, but like pre-'75 cars, folks cling to what they know and love rather than what they buy and try!

Lets say you needed 100Ah usable capacity from your batteries, and your main charging system was from the vehicles alternator. Now with conventional deep cycle batteries because you would only have 25% of your battery bank usable you would need 400Ah of battery bank, now there are a few ways you could do this, but the least expensive way would be four x 225Ah 6 volt Trojan batteries at a cost of $1,120. Now with AGM batteries you could have just two x 100Ah giving you 200Ah total, so there is your 100 Ah with heaps in reserve and an easy life for the batteries, so only 2 batteries, at a cost of $710 all up, or better still you could use a single 200Ah battery for a cost of $695.00. - See more at: http://www.fridge-and-solar.net/agm.htm#sthash.lE3bx5yy.dpuf

Your assumptions about use and price is definitely flawed. The comparison is not accurate. I choose not to explain it, I'm pretty sure everyone knows.

X2.... He is wrong on so many points, that I wouldn't know where to start... And I really don't feel like writing that much.

Ya, understood. Reminds me of a line in a Clint Eastwood movie, "He's a legend in his own mind..."

Back in the lab we have a name we use, it's "Jack*ss" (when they call you names and can't debate your claims, you've won the argument). :p


:)

Bud, no ones arguing with you. You just are preaching to a fairly knowledgeable choir. Yeah, there's little profit in name calling although I can take it, I've been called a few...:B

IMO, your assessment of costs of FLA vs AGM is not accurate. Also, your estimate of a discharge of only 25% for a bank of FLA is not anywhere near real use application for RV's or any other industry that uses GC2 6V's. If you find extraordinary advantage with AGM's in your application, use them. AGM may not fit everyone's needs, though.