ALLPOWERS R4000 review

What it is and who it suits

The R4000 is ALLPOWERS' largest portable station in our list: 3,456 Wh of LiFePO4 storage rated for over 3,500 cycles to 80 percent. It suits a household that wants whole-fridge, router and tool backup in one box that rolls rather than carries.

This review is researched, not tested. It relies on ALLPOWERS' US product page, Ready.gov and CDC.

The 4,000 W name and the 3,600 W table

The product title and headline say 4,000 W, but the specification table lists an inverter of 3,600 W, with four 120V outlets rated at 3,600 W and a 6,000 W peak. The page also lists a separate RV output at 3,000 W. We use the conservative table figure, and you should too when you size loads. Add up the running watts of what you want to power, plus any starting surge, before you buy.

The outlets are 100V to 120V only, so there is no 240 V output for a well pump or dryer.

Charging and expansion

AC input is listed at up to 2,000 W, and solar input at up to 2,000 W (12 to 150 V on the table, with 12 to 60 V in the feature list, so check which applies before you buy panels). Charging from AC and solar together is listed at a maximum of 3,000 W. ALLPOWERS says a single AC input gives a full charge in 2 hours.

The page also lists three charging modes, fast, standard and silent, and Wi-Fi and Bluetooth app control with a touch display. The car charger and solar panel cable are not included.

What the page does not say

The specification table says UPS is supported but gives no switchover time, so it is not suitable for a computer or equipment that cannot tolerate any break until you have asked. It also states no safety certification. Other stations on our list, such as the ALLPOWERS R3500, at least print a certification line, though without a UL standard number. Ask ALLPOWERS which standards cover this unit before connecting it to anything you cannot replace.

The listing's marketing copy says it can keep a fridge, a 1 HP air conditioner and an oxygen concentrator running for 48 hours. Treat that as a claim about one load mix, not a promise. If you depend on powered medical equipment, Ready.gov advises talking to your medical provider about a power outage plan, and our medical devices guide covers the steps.

Weight and use

ALLPOWERS lists 99.2 lb with casters and a slim profile, and describes it as gas free. It is easy to roll on a flat floor and hard to move up a step. Keep it somewhere dry and ventilated, and read our lithium battery fire safety guide.

Fuel generators are a different case. CDC says portable generators produce carbon monoxide and must be used outdoors, away from windows. A battery station avoids exhaust, which is why many households use it indoors for short outages, but our power station vs generator guide covers when a generator still wins.

How it compares and who should skip it

Within the ALLPOWERS comparison, the R3500 holds 3,168 Wh and lists 3,200 W at 93 lb, and prints a UL line, while the R4000 gives more capacity and output. On our power station page, the EcoFlow DELTA 3 Max holds 2,048 Wh at 44.8 lb.

Skip it if you need 240 V, a stated UL standard or a stated UPS timing, or if you want a unit you can carry. A smaller station suits phones and a router.

Is the R4000 a 4,000 W or a 3,600 W unit?

The headline says 4,000 W, but the specification table lists a 3,600 W inverter with a 6,000 W peak. We recommend sizing your loads to the 3,600 W figure.

How fast does the ALLPOWERS R4000 charge?

ALLPOWERS lists AC input of up to 2,000 W and says a full charge takes 2 hours from a single AC input. Solar input is listed at up to 2,000 W.

Does it have a UPS mode?

The specification table says UPS is supported, but it gives no switchover time. Ask the maker before you use it with equipment that cannot tolerate any break in power.

Does the R4000 state a safety certification?

We found no certification line on the product page. Ask ALLPOWERS which standards apply before you connect it to important equipment, and read the label on the unit.