duromax xp4850eh portable generator review

DuroMax XP4850EH Portable Generator Review

A Small Powerhouse for Your Basic Power Needs

If your need for backup power is minimal and you only want to be assured that you have something to rely on in case of a major power outage, consider buying the DuroMax XP4859EH. This hybrid generator is small and compact. With a 4,850 W starting wattage and the capacity to use both gasoline and propane, it may be the reliable generator you’re looking for.


  • Dimensions: 24 x 17 x 17 inches
  • Weight: 127 lbs
  • Starting watts: 4,850 W (gasoline), 4,608 (propane)
  • Running watts: 3,850 W (gasoline), 3,658 (propane)
  • Voltage: 120V/240VAC and 12VDC
  • Amperage: 32.08A/16.04A
  • Frequency: 60Hz
  • Horsepower: 7.5 HP
  • Engine type: 4-cycle, air-cooled, spark-ignition
  • Engine size: 225cc
  • Engine speed: 3,600rpm
  • Start type: electric, recoil
  • Fuel type: gasoline, propane
  • Fuel tank capacity: 3.96 gallons gasoline
  • Suggested propane tank size: 20 gallons
  • Runtime at half load: 10.42 hours (gasoline), 8.92 hours (propane)
  • Volume level: 69dB
  • EPA- and CARB-approved for all 50 states

Engine capacity and wattage

As indicated in the specs, the XP4850EH is a hybrid generator. This means it can switch between using gasoline and using propane. When running on gas, this model can generate a surge wattage of 4,850 W and 3,850 W running wattage. On the other hand, when running on propane, it can produce a surge wattage of 4,608 W and a running wattage of 3,658 W.

These power specs mean the XP4850EH can produce enough electricity for your house’s lighting and essential appliances, including your refrigerator, freezer, and air conditioner, in case of power outages. It can also work well as a dedicated generator for your sump pump. However, this capacity may not be enough if you intend on plugging in heavy-load appliances like your washing machine and dryer or your electric oven. In that case, you’re better off using a generator with a larger wattage.

The noise rating for this device is pegged at 69 decibels. This means this model is supposedly only as loud as a hairdryer or vacuum cleaner. A built-in muffler tamps down the noise even further, as well as helps reduce emissions.

The XP4850EH is pretty easy to run once you have properly broken it in. It only takes a flip of a switch to get it started. Breaking in this machine requires you to change the engine oil a few times. It’s best that you use SAE 10W-30 oil in doing so because it has the right viscosity level for this engine. Avoid using additive-laden oils or oils for two-stroke gasoline engines, as they can be rough on this model.

Fuel consumption

As mentioned, this DuroMax generator model is a hybrid capable of running on gasoline and propane, thanks to its Dual Fuel Technology design. This gives you more flexibility when it comes to your fuel sources. The gasoline tank can hold up to 3.96 gallons, while the recommended propane tank size is 20 gallons. When running on gasoline, this machine can run continuously for almost 11 hours. On propane, the runtime is around nine hours.

You need to note, however, that how this generator runs and consumes fuel all depends on the surrounding conditions. This model guzzles up more fuel when you use it at high altitudes—5,000 feet and above. It tends to cough out more emissions as well. You’ll need to have your dealer modify this generator’s carburetor if you intend to use it at high altitudes. The modified carburetor will slow down the machine’s fuel consumption and minimize its emissions. There’s a caveat, though: you should expect the generator’s horsepower to go down slightly when you have the carburetor modified as recommended.


The control panel on this movable generator sports three outlets: two 120V 20A GFCI outlets and one 120/240V 30 twist-lock outlet. Because this machine is designed with DuroMax’s proprietary MX2 power-boosting technology, it can run on 120V and 240V simultaneously. But you have the choice to set the machine running solely with 120V. All you need to do is to flick the voltage selector switch.

Ideal usage

The DuroMax XP4850EH portable generator is a good device to have around if you need backup for power outages and other emergencies. It will help you keep the lights and air conditioning on, preserve the food stored in your fridge, and run emergency devices like your sump pump.

Additionally, you can use this machine to provide power to a small worksite. You can safely plug-in power tools with smaller electrical loads. It will also work well if you use it for tailgating and outdoor parties. As for camping, this generator can probably power up a small camper. However, you’ll need a generator with a larger capacity if your camper is a 70-foot RV with all the fixings.

What’s in the box

  • Oil funnel
  • Spark plug wrench
  • Toolset (wrenches and double-sided screwdriver)
  • Wheel and handle kit
  • DC charging cables
  • Downloadable owner’s manual

What users say about the DuroMax XP4850EH

On the positive side, many users found this DuroMax machine reliable and work well in nearly all conditions, including cold weather. Some have expressed satisfaction despite the fact that it can only power the most basic home appliances simultaneously.

On the other hand, some users have noted that this generator sometimes doesn’t work when switched to propane usage. Its engine visibly consumes the propane, though the machine itself isn’t producing power. Most of the users who gave negative feedback expressed disappointment in the customer service, especially when it comes to warranty.

Additionally, some users observed that the tires on this generator look cheap, like the ones found on plastic toys. They stated that the tires have the tendency to develop flat spots when left standing on its own for any duration of time.

You can learn even more about the DuroMax XP4850EH portable generator by checking out current deals, shipping, and availability here.

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