A fridge can change the whole power setup. We added a second battery to our 4Runner, then solar to help keep it charged. Start with your loads before choosing a battery or panel.
First question What load are you running, for how long, and how will you recharge it?
We’ve had our original EcoFlow RIVER Pro for years. We charge it from the truck and from solar, and use it to power our Dometic CFX3 45 work fridge.
In our use, the fridge is quiet and keeps food cold. It’s a useful size for long, hot workdays, but it may be a little big for our work truck. Before buying a similar setup, check the fridge and battery footprint together, with room to reach your food and the connections.
Our RIVER Pro is a different model from the RIVER 3 Plus compared below. We haven’t measured this setup’s daily energy use or runtime. Start with the daily-energy example for the power decision, and the packing checklist for where the equipment will go.
A small battery or more stored energy?
Compare stored energy and carrying weight, then check your loads before estimating runtime. We have not tested either unit.
You already own an AC70 or are evaluating verified remaining exact-model retailer stock. The discontinued US direct listing is not a current buying recommendation.
Light for the table or your hands?
A lantern lights the table for everyone; a headlamp puts light where you look. Plan charging for whichever you carry.
Consider it when: You need portable battery storage and accessible 12V connections as part of a planned power system.
Keep in mind: Our version and internal battery are unknown. Current port layouts and dimensions may differ from the box in the photo; check availability in your region.
Consider it when: You want a portable battery for modest loads rather than wiring a second vehicle battery.
Keep in mind: A modest battery capacity can mean recharging more often, depending on fridge use. A panel, extra battery or compatible adapter can add to the total cost.
BLUETTI AC70 →Untested historical comparison; discontinued direct listing
Consider it when: You already own an AC70 or are evaluating verified remaining exact-model retailer stock. The discontinued US direct listing is not a current buying recommendation.
Keep in mind: The listed capacity does not tell you how long your particular fridge will run. Solar input is a maximum, not a guaranteed charging rate.
Consider it when: You need light where you are looking, without holding a torch or moving a lantern.
Keep in mind: A built-in battery needs charging. Maximum brightness and maximum runtime refer to different settings.
Compare the details
Gear in this guide
Manufacturer information checked where available on the date shown with each product. Product versions and prices can change. A photo of our gear does not establish that it matches a current model.
In our photo archive
Overland Solar Bugout 120
Portable panel from our archive
Our Bugout 120 label, showing the manufacturer and Boise, Idaho origin. It does not establish measured output.
From our setup
We added this panel to help charge the fridge battery. Our photo records it in use, but we did not measure output at camp.
Details that affect the fit
Bugout 120 named in our original camping post
Electrical label and actual output are not verified
Manufacturer label on our panel: made in Boise, Idaho, USA
Consider it when: You are researching the portable panel shown in our older setup.
Keep in mind: The electrical label is unverified. We cannot promise output, connector compatibility or current availability.
Before you choose: Check panel connector, controller, folded size and real charging conditions.
Evidence checked . Current specifications may differ from older gear.
Our secondary battery. Current specifications are a separate reference.
From our setup
We can read the model label in our battery photo. The current figures below differ from some older documentation; neither tells us how long our fridge ran.
Details that affect the fit
Current ODP-AGM34R listing: 12 V, 65 Ah at 20-hour rate
10.8 × 6.8 × 7.9 in with terminals; 46.6 lb
Consider it when: You are comparing an AGM battery for a properly designed vehicle electrical system.
Keep in mind: It is a 46.6 lb current-model reference. Capacity alone does not establish fridge runtime or installation compatibility.
Before you choose: Check tray size, terminal layout, charger settings and complete circuit design.
Evidence checked . Current specifications may differ from older gear.
Our older portable box. It is not proof of the battery inside or the later fixed installation.
From our setup
A white Hardkorr box rode beside the drawers in an older photo. We have not identified the box version or battery, or how it related to our later Off-Grid Engineering installation.
Details that affect the fit
Hardkorr branding and a white heavy-duty battery box are visible in our cargo photo
Current manufacturer box dimensions: 455 × 240 × 330 mm; maximum listed battery dimensions: 330 × 180 × 240 mm
The current listing notes that older white boxes may lack USB-C; it does not identify the version in our photo
Consider it when: You need portable battery storage and accessible 12V connections as part of a planned power system.
Keep in mind: Our version and internal battery are unknown. Current port layouts and dimensions may differ from the box in the photo; check availability in your region.
Before you choose: Measure both the battery and the assembled box against the cargo space; identify the battery inside before planning electrical load.
Evidence checked . Current specifications may differ from older gear.
A friend gave us the XL lantern. Our July 2020 post mentions the red night mode and a magnet added to one light. We liked having light above the kitchen, but have not confirmed the exact versions or which one we modified.
Details that affect the fit
Current Cairn XL listing: 350 lumens and a 10,000 mAh power bank
Current charging ports: USB-C with 18W PD and USB-A rated at 2.4A
The current listing describes a hanging tether and an IP65 rating; it is not an immersion rating
Consider it when: You want a rechargeable lantern above the cooking area, with a power-bank function to compare.
Keep in mind: Our older versions are unconfirmed. The listed power-bank capacity is not a promise of delivered phone charges or bright-light runtime.
Before you choose: Check the hanging position, charging cable and desired light mode. Sharing one battery between lighting and phone charging means planning for both uses.
Evidence checked . Current specifications may differ from older gear.
The lantern sat beneath the open hatch, above the kitchen workspace. This is our July 2020 photo, not a test of the current Cairn XL.
Select a photo to view the full frame.
The lantern beneath the open hatch, above the kitchen workspace.
Another option
EcoFlow RIVER 3 Plus
A smaller portable power station for modest camp loads
Why compare it
We haven't used the RIVER 3 Plus. Compare it if you want a battery you can carry between the car and camp instead of installing a second vehicle battery.
Affiliate link: We have not used this product. If you buy through this link, we may earn a commission at no extra cost to you.
600 W rated AC output; boost modes are not the continuous rating
Up to 220 W solar input, with compatible panels and cables
Consider it when: You want a portable battery for modest loads rather than wiring a second vehicle battery.
Keep in mind: A modest battery capacity can mean recharging more often, depending on fridge use. A panel, extra battery or compatible adapter can add to the total cost.
Before you choose: Add up your device loads, check starting surges and verify solar voltage and connector compatibility. Confirm current stock and exactly what the chosen bundle includes.
Evidence checked . Current specifications may differ from older gear.
Untested historical comparison; discontinued direct listing
Why compare it
We haven't used the AC70. As checked October 22, 2026, BLUETTI's US standalone listing is marked discontinued and buying is disabled. Exact-model retailer stock may remain, but is not confirmed here. We retain its specifications for comparison and existing owners.
Details that affect the fit
768 Wh battery capacity, according to BLUETTI
1,000 W continuous AC output
22.5 lb listed weight
Up to 500 W solar input with compatible panels
Consider it when: You already own an AC70 or are evaluating verified remaining exact-model retailer stock. The discontinued US direct listing is not a current buying recommendation.
Keep in mind: The listed capacity does not tell you how long your particular fridge will run. Solar input is a maximum, not a guaranteed charging rate.
Before you choose: For any remaining retailer stock, confirm the exact US AC70, condition, included cables, delivery availability and warranty eligibility. AC70P and solar bundles are different listings.
Evidence checked . Current specifications may differ from older gear.
Auxiliary red light alongside the white lighting modes
Consider it when: You need light where you are looking, without holding a torch or moving a lantern.
Keep in mind: A built-in battery needs charging. Maximum brightness and maximum runtime refer to different settings.
Before you choose: The reviewed retailer version is NU25 MCT UL, black, with elastic cord (SKU FL-NITE-NU25MCT-UL-BK). Confirm the selected variant and included accessories before ordering; older NU25 models and the wider-band MCT version differ. Check runtime at the brightness you need.
Evidence checked . Current specifications may differ from older gear.
Sunset in the desert, from our November 2020 post. We have not recorded the exact location.
Select a photo to view the full frame.
Last light in the desert, from our November 2020 post. Exact location unconfirmed.
Before you buy
How do I estimate a day of fridge power?
Start with measured energy use over a representative day, if available. For a planning example only, a fridge averaging 20 W over 24 hours would use 480 Wh. If you assume 80% of nominal battery capacity is available to that load, 480 ÷ 0.8 gives a 600 Wh planning target before phones, lights or reserve. Both 20 W and 80% are illustrative assumptions, not our measurements or either power station’s tested efficiency. Fridge cycling, weather, settings and the AC or DC connection change the result. Plan how to recharge as well as what to carry. RIVER 3 Plus’s listed 286 Wh is below this example target; AC70’s 768 Wh is above it, before accounting for your other loads and reserve.
Does a 65 Ah battery tell me how long my fridge will run?
Not by itself. The current ODYSSEY rating is at the 20-hour rate. A runtime estimate also needs the fridge load, usable battery capacity, conditions and charging plan. Our archive does not contain a controlled runtime test.
Is a SmartShunt a battery or a charger?
It is a monitor. The current range provides Bluetooth and VE.Direct connections to observe a battery system. Its 500A/50mV label does not describe the safe current rating of all the cables and protection in an installation.
Can one lantern cover lighting and phone charging?
A lantern with a power-bank function can combine those jobs, but they share stored energy. The current Cairn XL lists a 10,000 mAh power bank; that figure does not establish delivered charge, brightness or runtime for our older lantern.
How should I compare RIVER 3 Plus and AC70 for my actual load?
List the equipment, its input requirements and when it runs. The current RIVER 3 Plus lists 286Wh and 600W rated AC output; AC70 lists 768Wh and 1,000W. Watt-hours describe stored energy and watts describe output capability. Neither figure is a delivered-runtime promise. We have not used these two models, and our older RIVER Pro experience does not test either one. The AC70 US direct listing is marked discontinued, with buying disabled as checked October 22, 2026. Verify remaining exact-model retailer stock separately.
Will a higher solar-input rating recharge my battery faster at camp?
RIVER 3 Plus lists up to 220W solar input and AC70 up to 500W. Those are input limits, not expected field output. Check compatible panel voltage, current and cables, then consider shade, available daylight and the energy used while charging. Plan an alternative recharge route when conditions cannot support the load; we have no side-by-side solar or fridge-runtime measurements.
Is RIVER 3 Plus the same as RIVER Pro or RIVER 2 Pro?
No. This guide compares EcoFlow RIVER 3 Plus with BLUETTI AC70. RIVER Pro, RIVER 2 Pro and BLUETTI EB70 are different models; their specifications and accessories must be checked separately. Match the full model name and US version on the retailer page.
What belongs in the power-system budget?
Compare the station, a compatible charging route, any panel and cables, and the space needed for storage and ventilation. Check appliance input and starting demand against the rated output. A higher-wattage socket will not compensate for too little stored energy, and a large solar-input limit does not guarantee enough daily charging. If ice resupply already works for your trips, keeping an ice cooler may avoid buying a fridge power system at all.
