Keystone RV was founded in 1996 in Goshen, Indiana, and became part of Thor Industries in 2001. It builds towables only: travel trailers, fifth wheels and toy haulers. The Montana and Cougar fifth wheels are among its best-known lines, along with Passport, Springdale and Hideout travel trailers. Keystone's site notes that Dutchmen is part of the Keystone family.
Battery locations
Fifth wheels often have the batteries in a front compartment, near the pin box area, sometimes on a slide-out tray. Travel trailers usually have them on the A-frame tongue. See travel trailer and fifth wheel battery locations.
Big fifth wheels need real batteries
Large fifth wheels like the Montana often have hydraulic or electric landing gear, auto-leveling, multiple slides and residential refrigerators. A single small battery struggles. If your slides stall or the landing gear slows down, the battery bank may be too weak, or failing.

Residential fridges
Some larger Keystone fifth wheels have residential refrigerators that run on 120-volt power through an inverter when you're not plugged in. That can drain a lead-acid bank surprisingly fast while you're towing or dry camping. Lithium and proper charging from the tow vehicle help. See boondocking battery sizing.
What we see in Florida
Fifth wheels in long-stay parks that rarely move, with batteries that sat on old converters for years. And front compartments that trap heat.
Upgrades
Lithium is popular in big fifth wheels. We look at the converter, inverter-charger and wiring.
Fitment note: Battery locations, tray sizes and electrical packages vary by model, floor plan and model year. Treat this as a general guide, not a fitment guarantee. We confirm what your RV has before anything is installed.
Sources
Facts about companies and products on this page come from these sources. Check the maker for current models and specifications.

