A mid-priced, expandable LiFePO4 station for home backup and RV use, for buyers who want room to add batteries later.
Amazon $549The PECRON E1500LFP rates 4.3 among large portable power stations; the VTOMAN FlashSpeed 2400 rates 4.1 among mid-size ones. The PECRON E1500LFP costs $150 less ($549 vs $699).

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 $699Prices 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 (large and mid-size), 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 | PECRON E1500LFP | VTOMAN FlashSpeed 2400 |
|---|---|---|
| Overall rating | 4.3/5 | 4.1/5 |
| Value 25% | 91 $0.36 per rated Wh | 80 $0.50 per rated Wh |
| Tested capacity 15% | 91 90% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 96 LiFePO4, 3,500 cycles, 5-year warranty | 76 LiFePO4, 3,000 cycles, 2-year warranty |
| AC output 15% | 44 2,200 W continuous AC | 100 2,400 W continuous AC |
| Charging speed 10% | 69 0-100% on AC in 1 h 48 min | 95 0-100% on AC in 1 h |
| Portability 10% | 79 88 Wh per kg (38.4 lb (17.4 kg)) | 53 74 Wh per kg (41.9 lb (19 kg)) |
| Solar input 5% | 59 1,000 W max solar input | 32 600 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 55 UPS (10 ms), 100 W USB-C |
Independent capacity tests
PECRON E1500LFP
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 90% | Efficiency test (load not stated in the review); the unit threw an overheating warning during the run. Measured AC recharge from empty about 1 h 46 min. |
VTOMAN FlashSpeed 2400
No independent test published yet.
Specifications
| PECRON E1500LFP | VTOMAN FlashSpeed 2400 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,536 Wh | 1,408 Wh |
| Tested usable capacity | 1,382 Wh (90%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,500 to 80% | 3,000 to 80% |
| Expandable | Yes, up to 9,216 Wh | No |
| Output | ||
| AC output | 2,200 W (4,400 W surge) | 2,400 W (3,200 W surge) |
| AC outlets | 4 total | 3 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) | 2 (up to 100 W each) |
| USB-A ports | 2 | 4 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 1 | 2 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,400 W | 1,500 W |
| Full AC charge time | 1 h 48 min (Manufacturer: full in 1.8 hours) | 1 h (VTOMAN: 1 h; Amazon listing: 58 min) |
| Max solar input | 1,000 W | 600 W |
| Solar input voltage | 11-60V, 20A (XT60) | 12-60V (Anderson) |
| Car charging | 100 W | 200 W |
| Build | ||
| Weight | 38.4 lb (17.4 kg) | 41.9 lb (19 kg) |
| Dimensions | 14.8 x 9.3 x 12 in | 15.5 x 11 x 10.6 in |
| App | PECRON app (Wi-Fi/Bluetooth) | - |
| Warranty | 5 years | 2 years |
| Released | 2024-01 | 2026-03 |