Marbero 237Wh 300W Portable Power Station
Power station · M82. Specs from the manufacturer page (checked ).

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.
Key features
- 237 Wh capacity, equivalent to 64,000 mAh at 3.7V
- 2 AC wall outlets rated 300 W with 375 W peak, accepting 2-prong and 3-prong plugs
- 2 USB-A QC3.0 ports (18W max), 2 USB-A ports (15W max), 1 USB-C port (18W PD), and 1 DC output port 12-16.8V 10A (14A max)
- Wall outlet charging fully in 6 hrs; 12V car adapter charging fully in 8 hrs; solar input 16.4-24V 2.7A max (panel not included)
- Two LED lights: the top light has 2 brightness levels; the side light has 3 brightness levels and steady, twinkling and SOS modes
- Battery Management System with voltage and temperature control, rear cooling vents, and automatic shutoff on short circuit or overload
What it is for
- camping
- road trips
- power outages
Specifications
| Capacity | 237 Wh |
|---|---|
| Continuous output | 300 W |
| Peak / surge | 375 W |
| AC charging | fully quick charged in 6hrs |
| Weight | 2.1 kg (4.6 lb) |
| Dimensions | 20.7 × 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
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | surge too high | — |
| Chest freezer | 100 W (500 start) | surge too high | — |
| CPAP (no humidifier) | 35 W (40 start) | yes | 5.4 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 3.1 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 16 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 3.1 h |
| TV 50" | 75 W | yes | 2.5 h |
| Sump pump 1/2 HP | 920 W (2150 start) | surge too high | — |
| Well pump 1/2 HP | 880 W (2000 start) | surge too high | — |
| Space heater 1500 W | 1500 W | surge too high | — |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
Similar portable power stations
Bluetti AC2A
Westinghouse iGen300s
Westinghouse iGen400s
Westinghouse iGen200s
Allpowers R600
Vtoman Jump 600X
Bluetti EB3A
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All 14 comparisons
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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.