VTOMAN FlashSpeed 2400
#23 in Mid-sizeFull review
A high-output LiFePO4 station for running power-hungry appliances in short bursts and fast UPS backup. Buy a larger battery if runtime matters more than wattage.
Amazon $719.99 VTOMAN $699$699
The VTOMAN FlashSpeed 2400 rates 4.1 among mid-size portable power stations; the Goal Zero Yeti 1500 rates 3.3 among large ones. The VTOMAN FlashSpeed 2400 costs $800.95 less ($699 vs $1,499.95).
Goal Zero Yeti 1500
#30 in LargeFull review
For outdoor and overlanding use where weather resistance matters more than price per watt-hour.
Goal Zero $1,499.95$1,499.95
Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (mid-size and large), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | VTOMAN FlashSpeed 2400 | Goal Zero Yeti 1500 |
|---|---|---|
| Overall rating | 4.1/5 | 3.3/5 |
| Value 25% | 80 $0.50 per rated Wh | 0 $1.00 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 80 88% of rated capacity delivered (1 test) |
| Battery life 15% | 76 LiFePO4, 3,000 cycles, 2-year warranty | 100 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 100 2,400 W continuous AC | 33 2,000 W continuous AC |
| Charging speed 10% | 95 0-100% on AC in 1 h | 92 0-100% on AC in 1 h 6 min |
| Portability 10% | 53 74 Wh per kg (41.9 lb (19 kg)) | 33 63 Wh per kg (52.8 lb (23.9 kg)) |
| Solar input 5% | 32 600 W max solar input | 53 900 W max solar input |
| Features 5% | 55 UPS (10 ms), 100 W USB-C | 75 UPS (28 ms), 140 W USB-C, app |
Independent capacity tests
VTOMAN FlashSpeed 2400
No independent test published yet.
Goal Zero Yeti 1500
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 1,320 Wh | 87.7% | Full-discharge AC test; OutdoorGearLab states 89%, 1320/1505.28 works out to 87.7% |
Specifications
| VTOMAN FlashSpeed 2400 | Goal Zero Yeti 1500 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,408 Wh | 1,505.3 Wh |
| Tested usable capacity | - | 1,320 Wh (88%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 to 80% | 4,000 to 80% |
| Expandable | No | No |
| Output | ||
| AC output | 2,400 W (3,200 W surge) | 2,000 W (3,600 W surge) |
| AC outlets | 3 total | 4 total |
| 120V 15A outlets (NEMA 5-15R) | 3 | - |
| 120V 20A outlets (NEMA 5-20R) | - | 4 |
| AC waveform | - | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 4 (up to 140 W each) |
| USB-A ports | 4 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 0 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (28 ms switchover) |
| Charging | ||
| AC charging | 1,500 W | 1,500 W |
| Full AC charge time | 1 h (VTOMAN: 1 h; Amazon listing: 58 min) | 1 h 6 min (About 1.1 h full, 0-80% in 0.8 h (manufacturer)) |
| Max solar input | 600 W | 900 W |
| Solar input voltage | 12-60V (Anderson) | HPP 12.3-60V (600W) + 8mm 13.2-30V (300W) |
| Car charging | 200 W | 120 W |
| Build | ||
| Weight | 41.9 lb (19 kg) | 52.8 lb (23.9 kg) |
| Dimensions | 15.5 x 11 x 10.6 in | 15.7 x 11.4 x 12.02 in |
| App | - | Goal Zero app |
| Warranty | 2 years | 5 years |
| Released | 2026-03 | 2026 |