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Marbero 237Wh 300W Portable Power Station

Power station · M82. Specs from the manufacturer page (checked ).

Marbero 237Wh 300W Portable Power Station
Photo: Marbero

The Marbero 237Wh 300W Portable Power Station is a 237 Wh portable power station with 300 W AC output and 375 W peak. It has two AC wall outlets, USB-A, USB-C and DC 12-16.8V ports, and can be recharged from a wall outlet, a 12V car adapter, or a solar panel sold separately.

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Capacity
237Wh
Continuous
300W
Peak / surge
375W
Weight
2.1kg

Key features

What it is for

Specifications

Capacity237 Wh
Continuous output300 W
Peak / surge375 W
AC chargingfully quick charged in 6hrs
Weight2.1 kg (4.6 lb)
Dimensions20.7 × 14.8 × 9.9 cm (8.1 × 5.8 × 3.9 in)

From the Marbero page. Values the manufacturer does not publish are left out.

How long it runs common appliances

ApplianceWattsRuns?Hours
Refrigerator (with freezer)120 W (600 start)surge too high—
Chest freezer100 W (500 start)surge too high—
CPAP (no humidifier)35 W (40 start)yes5.4 h
Gas boiler (pump + controls)120 W (300 start)yes3.1 h
Wi-Fi router + modem/ONU12 Wyes16 h
Starlink (standard dish)60 W (100 start)yes3.1 h
TV 50"75 Wyes2.5 h
Sump pump 1/2 HP920 W (2150 start)surge too high—
Well pump 1/2 HP880 W (2000 start)surge too high—
Space heater 1500 W1500 Wsurge too high—

Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.

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Connection and wiring

We have not linked an official manual for this model yet; see the Marbero page.

Error codes and troubleshooting

We have not found an official code table for this model yet.

FAQ

How long will the Marbero 237Wh 300W Portable Power Station run a refrigerator?

About 4 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.

Can the Marbero 237Wh 300W Portable Power Station start a sump pump or well pump?

Starting surge matters more than running watts: this unit is rated 375 W peak. That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.

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