John is absolutely right. A single group 24 battery is ok if you don't expect to dry camp or boon-dock. That is to say if you plan to always be in parks with power hook ups one group 24 battery will be sufficient. On the other hand if you expect to get out and camp without hook ups then I'd suggest upgrading to two batteries. Group 24 will work but if space allows 2 group 27's or 2 6v golf cart batteries would be better.
As for tires, on a trailer of your size go load range E, 10 ply ST 225 75 R15 LR E. You don't mention the year of the Laredo but it likely came with load range D tires. 4 ply tires would be woefully under sized for your trailer.
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2017 Cougar 279RKSWE
2007.5 Dodge Ram 2500 6.7 Cummins
Retirement Training Completed
I think the little voices in my head have started a chat group.
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