That depends on the type of camping you intend to do. If you are going to be hooked up to shore power at your campgrounds, then the standard battery that comes with your TT is more than enough. (Just remember to pull the main fuse by the battery when stored and not hooked up to shore power for a few days, as there are things that draw power (fridge ckt board, CO alarm, radio..)
If you are planning on dry camping (no shore power), then a second battery is recommended. Should you just add a second battery like the existing, or convert to TRUE DEEP CYCLE batteries? That can be decided based on the amount of time you will be dry camping? Couple days? Week?... As you will need to recharge the batteries using a generator, TV, or Solar. If you will be dry camping, I personally would recommend just adding a second battery and seeing how that will work. It will still be cheaper that buying 2 new TRUE deep cycle batteries, and your learning experience will be on cheaper batteries and not on the EXPENSIVE ones.
You will want to convert your interior lights to LED's, which will drain your batteries a lot less than regular bulbs. Inverter?
Just my thoughts,
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
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