Allison where did you get those cranking numbers from?
When I went to the Trojan website it listed the 27 agm having CA=780 and CCA=560. Not trying to be rude just want to know

I have had my share of optimas and wouldn't give 10 dollars for another one. I have trojan SCS 225's for my trolling motor and have no problems. They are heavy though.

I have never had Trojans...hear good things about them.

Have had three optimas in my boat for 4 years and they are still going strong.

the trojans are industrial batteries( I know from experience ) and I guarentee they will outlast any optima, how many pallet jacks, sweeper/scrubbers and other industrial /commercial equipment do you know using optimas, absolutely none and if trojans can run these high use hard punishment items running a dinky 21 foot bass boat around a lake is no problem and also please go buy the optimas so I can pass you with my trojans.

hands dowm TROJAN!!!

The new optimas don't seem to be worth buying. Old ones were/are good, I have a red top from 99 in my jeep.

My new boat came with 3 sealed industrial batteries so I'll see how long they'll last. I usually just run the yellow walmart ones. I have no luck at all with regular "marine" batteries. Seem to be able to last about one more than the 12 month warranty.