12V Fridge (Dometic CFX3 / ICECO VL class)
A 12V compressor fridge replaces the cooler-and-ice routine forever. Plug it into a 12V outlet (or wire it direct to a dual battery), set the temp, and forget about it for a week.
A 12V fridge is the second-highest ROI overland upgrade behind a real recovery kit. It runs off a compressor (not thermoelectric, which is junk for camping) and pulls 0.5-2 amps depending on outside temp. With a single battery and the engine off, you've got 8-12 hours of fridge runtime before low-voltage cutoff kicks in. With a dual battery setup (elec-dual-battery-isolator), you've got 2-3 days.
For an XJ specifically: cargo capacity matters. A 35L fridge (Dometic CFX3 35, ICECO VL45) fits behind the rear seats with room for gear. A 45-55L fridge starts crowding the cargo area; if you're going to a 50L+ fridge, plan on a fridge slide and dedicated mounting. Wiring is straightforward — most fridges come with a 12V cigarette plug; for serious use, wire direct to the battery through an Anderson Powerpole connector and a 15A inline fuse.
The brand question: Dometic and ARB are the premium tier ($800-1,300). ICECO and Whynter are the budget tier ($400-700). The premium tier has better seals, more efficient compressors, and a 5-year warranty; the budget tier works fine for occasional use but the compressors are noisier and run hotter. If you camp 30+ nights/year, buy the premium tier and budget for it to last 15+ years.
Why it works
- No ice, no draining cooler water, no soggy food
- Set-and-forget — cold food for a week
- Doubles as a freezer (most have dual-zone or set to freeze)
- Resale on quality fridges is strong
Trade-offs
- $500-1300 — significant investment
- Needs dual battery for serious off-grid use
- 35L+ fills cargo space fast
- Cheap fridges fail in heat (>110°F desert)
Tools required
- wire strippers
- fuse holder + appropriate fuse
- voltmeter
Parts
| Part | Vendor | Est. price |
|---|---|---|
| Dometic CFX3 35 | Dometic | ~$950 |
| ICECO VL45 ProS | ICECO | ~$550 |
| Whynter FM-45G | Whynter | ~$500 |
| Cargo-area tie-down anchors + fridge slide (optional) | Goose Gear | ~$350 |
Related
- Dual Battery Setup - DC-DC Isolator (Blue Sea / Redarc)
- All Jeep Cherokee XJ guides & tools
- Browse the full DIY database
Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.