The UGREEN 300W 48000mAh Portable Power Station is the better portable power station overall, rated 3.3 to 3.0. The UGREEN 300W 48000mAh Portable Power Station leads on battery life and portability. The Westinghouse iGen400s wins on value and AC output.
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 $139.99 UGREEN $169.99A cheap, very light backup for phones, laptops and small lights on a road trip or in an outage. Skip it if you need to run anything with a motor or over 200W.
Amazon $139 Westinghouse $169Prices were last checked October 20, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every small portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | UGREEN 300W 48000mAh Portable Power Station | Westinghouse iGen400s |
|---|---|---|
| Overall rating | 3.3/5 | 3.0/5 |
| Value 25% | 60 $0.91 per rated Wh | 73 $0.76 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 76 LiFePO4, 3,000 cycles, 1-year warranty | 15 Li-ion NMC, 500 cycles, 2-year warranty |
| AC output 15% | 0 No AC outlets (DC only) | 17 200 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 89 94 Wh per kg (3.6 lb (1.6 kg)) | 51 73 Wh per kg (5.5 lb (2.5 kg)) |
| Solar input 5% | 50 solar input not published (neutral score used) | 46 100 W max solar input |
| Features 5% | 20 140 W USB-C | 20 100 W USB-C |
| UGREEN 300W 48000mAh Portable Power Station | Westinghouse iGen400s | |
|---|---|---|
| Battery | ||
| Rated capacity | 153.6 Wh | 183.6 Wh |
| Chemistry | LiFePO4 | Li-ion NMC |
| Cycle life | 3,000 to 80% | 500 Manufacturer states 500-1,000 cycles, end-of-life capacity not stated |
| Expandable | No | No |
| Output | ||
| AC output | None (DC only) | 200 W (400 W surge) |
| AC outlets | 0 | 2 total |
| 120V 15A outlets (NEMA 5-15R) | - | 2 |
| AC waveform | - | Modified sine wave |
| USB-C ports | 3 (up to 140 W each) | 4 (up to 100 W each) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | No | No |
| DC5521 ports | - | 1 |
| Charging | ||
| Max solar input | - | 100 W |
| Solar input voltage | - | 5-24V |
| Build | ||
| Weight | 3.6 lb (1.6 kg) | 5.5 lb (2.5 kg) |
| Dimensions | 143 x 105 x 77 mm (5.6 x 4.1 x 3.0 in) | 9.4 x 4.5 x 5.9 in |
| Warranty | 1 years | 2 years |
