A well-priced 828Wh LiFePO4 station that charges fast from the wall, good for home backup of essentials and car camping.
Amazon $339.99 VTOMAN $329.99The VTOMAN FlashSpeed 1000 rates 3.6 among mid-size portable power stations; the VTOMAN FlashSpeed 1500 rates 3.6 among large ones. The VTOMAN FlashSpeed 1000 costs $259.01 less ($329.99 vs $589).

A 1.5kWh LiFePO4 station with fast AC charging at a low price, good for home backup and RV use if you mostly recharge from the wall.
VTOMAN $589Prices 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 1000 | VTOMAN FlashSpeed 1500 |
|---|---|---|
| Overall rating | 3.6/5 | 3.6/5 |
| Value 25% | 94 $0.40 per rated Wh | 88 $0.38 per rated Wh |
| Tested capacity 15% | 18 74% of rated capacity delivered (1 test) | 37 78% of rated capacity delivered (1 test) |
| Battery life 15% | 76 LiFePO4, 3,000 cycles, 2-year warranty | 76 LiFePO4, 3,000 cycles, 2-year warranty |
| AC output 15% | 44 1,000 W continuous AC | 0 1,500 W continuous AC |
| Charging speed 10% | 89 0-100% on AC in 1 h 10 min | 95 0-100% on AC in 1 h |
| Portability 10% | 23 58 Wh per kg (31.7 lb (14.4 kg)) | 68 82 Wh per kg (41.4 lb (18.8 kg)) |
| Solar input 5% | 25 300 W max solar input | 13 400 W max solar input |
| Features 5% | 80 UPS, expandable, 100 W USB-C | 80 UPS (20 ms), expandable, 100 W USB-C |
Independent capacity tests
VTOMAN FlashSpeed 1000
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| CNET | 612 Wh | 74% | 480W load logged with HOBOware; recharge from empty 1 h 8 min (listed under other stations tested; RTE not given). |
VTOMAN FlashSpeed 1500
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| Techno-Science | 1,210 Wh | 78% | About 1,210Wh delivered into a ~1,040W hair-dryer load on the 230V EU version; recharge drew about 1,560Wh in roughly an hour. |
Specifications
| VTOMAN FlashSpeed 1000 | VTOMAN FlashSpeed 1500 | |
|---|---|---|
| Battery | ||
| Rated capacity | 828 Wh | 1,548 Wh |
| Tested usable capacity | 612 Wh (74%) | 1,210 Wh (78%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 3000+ cycles | 3,000 to 80% |
| Expandable | Yes, up to 2,376 Wh | Yes, up to 3,096 Wh |
| Output | ||
| AC output | 1,000 W (2,000 W surge) | 1,500 W (3,000 W surge) |
| AC outlets | 3 total | 3 total |
| 120V 15A outlets (NEMA 5-15R) | 3 | 3 |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 4 | 4 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 2 | 2 |
| UPS / pass-through | Yes | Yes (20 ms switchover) |
| Charging | ||
| AC charging | 700 W | 1,500 W |
| Full AC charge time | 1 h 10 min | 1 h |
| Max solar input | 300 W | 400 W |
| Solar input voltage | 10-50V (Anderson) | 30-60V (Anderson) |
| Car charging | 200 W | 200 W |
| Build | ||
| Weight | 31.7 lb (14.4 kg) | 41.4 lb (18.8 kg) |
| Dimensions | - | 15.5 x 11 x 10.6 in |
| Warranty | 2 years | 2 years |
| Released | 2024-03 | 2023-08 |