A very light, low-cost 237Wh station for charging phones, cameras and a CPAP on short trips. Buyers who need longer battery life or laptop-speed USB-C should look at LiFePO4 models.
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Model number | M823 |
|---|---|
| Battery | |
| Rated capacity | 237 Wh |
| Chemistry | Lithium-ion |
| Output | |
| AC output | 300 W (375 W surge) |
| AC outlets | 2 total |
| 120V 15A outlets (NEMA 5-15R) | 1 |
| 120V 2-prong outlets (NEMA 1-15R) | 1 |
| AC waveform | Pure sine wave |
| USB-C ports | 1 (18 W) |
| USB-A ports | 4 |
| 12 V car outlet | No |
| Charging | |
| Full AC charge time | 6 h ("Fully quick charged in 6hrs" from the wall per the listing; 8 hr from a 12V car socket) |
| Solar input voltage | 16.4-24V |
| Build | |
| Weight | 4.6 lb (2.1 kg) |
| Dimensions | 8.15 x 5.83 x 3.90 in |
| Warranty | 1 years |
A large USB-C battery for photographers, travelers and campers who only need to charge laptops, phones and cameras. Skip it if anything you own needs a wall plug.
Amazon $139.99For campers and travelers who want a small, long-lived LiFePO4 battery for phones, laptops, lights and CPAP. Larger or faster-charging stations give more for the money if you need to run appliances.
Amazon $259.99A light DC-only station for campers who want a built-in light and app control. Choose the TRAIL 300 DC instead if long battery life matters more than weight.
Amazon $199Compare the MARBERO M823 with any other portable power station →
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