Oh. You got an Optima. Definitely not the "optimal" choice for your application, but certainly the most expensive one. Someone sold you that MORE is better. Overkill it is not. As some say "2/3 the battery for 3/2 the price."
Optima batts are definitely maintenance free, but need to be really carefully recharged with a three-stage-or-more charger, and I hope your trailer has one. Never let any battery go below 50% charge, you can easily destroy it that way, even the coveted Optima. Be careful, and you may get 2 years out of it.
A simple Walmart Marine/RV $95 or any DeepCycle would have suited your needs perfectly. Not to discourage you, but be sure to flood the forums with questions to make the right choices. Especially about batteries... and tires!
