I assume you mean Trojan black box batteries. I have never heard of them and can't find them on Trojan's web site. I would get a hold of Trojan and see if these are legit or rip offs of their name. highdesertranger
First thing is ,I have to learn to spell Trojan.I don't know who makes these.I don't need batteries right now,but I think I'll go with Duracell (Deka)when I do.First set of Dekas were great.Better than 6 years of service and I could have stretched it another year.On my third year with Crown brand now and they are already fading.They were cheap($93)and the dealer wrote me up as a farmer so I didn't have to pay sales tax.If I get 4 years out of them,the money will work out about the same.
Appreciate your input,John.But I think I'll go with my personal experience.By the way,Walmart has 2 year free replacement warranty rv batteries for $95.Maybe just buy about 1/3 the amount you need,beat the hell out of them for 2 years,then replace.
Not ethical IMO (not worth arguing about though), and a fair bit of hassle.
The best deep-cycle battery value by far is Duracell (actually Deka/East Penn) FLA deep cycle golf cart batteries, 2x6V, around $200 per 200+AH pair from BatteriesPlus or Sam's Club.