A portable fridge that plugs into a wall outlet at home and also runs on 12V/24V in a vehicle comes down to a short list of power and cooling checks. This guide runs those checks against the Explorer Bear EX40B 42QT/40L 12/24V Portable Electric Fridge Freezer, whose published specs answer some of them and leave others open. It covers the compressor question, the two power inputs, the pre-chill routine at home, the switch to vehicle power, low-voltage battery protection, capacity, the two compressor options, a use-case table, and a Q&A.
Is It a True Compressor Fridge or an Electric Cooler?
Start with the cooling system. The EX40B is a portable electric fridge-freezer, and its options are listed by compressor: a Regular compressor model and a Powered by LG model. It reaches 0°F, and an LCD interface sets the temperature.
Do not rely on the word "electric" in a product name. Confirm that the spec sheet names a compressor and states a lowest temperature as a number.
Which Power Inputs Does a Home-and-Vehicle Fridge Need?
A fridge that serves both halves of the routine needs two inputs. The EX40B lists both.
| Power check | EX40B spec |
|---|---|
| Home wall outlet (AC) | AC 110–240V |
| Vehicle (DC) | DC 12V/24V |
| Built-in battery | None indicated; requires AC or DC power |
Wall power is not battery operation. The fridge requires AC or DC power and no built-in battery is indicated, so plan a power source for every stage of the trip.
The published spec text does not say whether the unit includes a home power supply. Confirm that on the product page or with the store before you count on wall use between trips.
How Do You Pre-Chill a Compressor Fridge at Home?
Plug the fridge into a wall outlet before the trip and set your target temperature on the LCD. Pre-chilling this way puts the initial cooldown on wall power instead of vehicle power. Load food and drinks that are already cold once the display shows your setpoint.
The published specs give no pre-chill time. Watch the LCD temperature readout instead of a clock. The interface lets you set and monitor temperatures, and the fridge reaches 0°F at its lowest.
How Do You Switch to Vehicle Power?
Move the loaded fridge to the vehicle and connect it to the DC 12V/24V supply. The input accepts both voltages, which the product description frames as flexibility in vehicles, RVs, boats, or at home. Check the LCD once the fridge is connected and confirm the temperature matches your setpoint.
The spec sheet states up to 4 days of precise cooling. Treat that as the manufacturer's figure for the unit and plan longer trips around a reliable power source.
What Should You Ask About Low-Voltage Battery Protection?
Low-voltage battery protection matters whenever a fridge draws from a vehicle battery. The published EX40B specs do not describe it, and they state no cutoff thresholds or settings. Ask whether the fridge has it, and at what voltage it acts, before you plan a multi-day trip on vehicle power alone.
Does the Capacity and Build Fit Your Trips?
The EX40B has 42 qt / 40 L of total capacity. That holds up to 62 cans (12 fl oz each) or up to 32 bottles (16 fl oz each). The spec sheet also flags the limit: 40L may be small for large groups or long trips.
The body is stainless steel with a weatherproof polymer coating and stainless steel handles. An independent review lists about 24.8 inches wide, 16.5 inches high, 15.7 inches deep, and a weight around 40.7 pounds.
Regular or LG-Powered Compressor?
The EX40B comes in two compressor options. The LG-powered model is the premium variant, specified for greater performance, longevity, and less noise. It also costs more than the Regular model.
| Option | SKU | Price |
|---|---|---|
| Regular compressor | EX40B | $359.00 |
| Powered by LG compressor | EX40B-LG | $449.00 |
Which EX40B Option Fits Which Trip?
Fit depends on how you travel. These pairings are general guidance built from the published specs.
| Use case | Likely fit | Spec behind it |
|---|---|---|
| Wall-powered pre-chill at home, then a vehicle | Generally suitable | AC 110–240V and DC 12V/24V inputs |
| Weekend away, road trips, camping, tailgates | Generally suitable | 40L holds up to 62 12 fl oz cans; the description names these uses |
| Large groups or long trips | May be tight | 40L may be small for large groups or long trips |
| Quieter operation matters most | Consider the LG-powered model | LG compressor for less noise; $449.00 |
| Lowest price matters most | Consider the Regular model | Regular compressor; $359.00 |
Quick Answers on the EX40B's Power and Cooling
Does it plug into a household outlet?
The spec lists AC 110–240V as a power option.
Does it run on vehicle power?
Yes. The spec lists DC 12V/24V.
Does it have a built-in battery?
No built-in battery is indicated. It requires AC or DC power.
How long should I pre-chill it?
The published specs give no time. Use the LCD temperature display to see when it reaches your setpoint.
How cold does it get?
It reaches 0°F.
Does it have low-voltage battery protection?
The published specs do not say. Ask before you buy.
Is a home power supply included?
The spec text does not say. Confirm it with the store.
Final Thoughts on Choosing a Home-to-Vehicle Fridge
The deciding variable is power. A fridge that takes AC 110–240V at home and DC 12V/24V in a vehicle covers both halves of the routine, and the EX40B lists both inputs. For weekend trips and road trips, the Regular model at $359.00 is a sensible default, with the LG-powered model at $449.00 as the option for less noise. Groups heading out for longer trips should weigh the 40L capacity first. Explore the Explorer Bear EX40B and ask the store about the power supply and battery protection details above.
