EcoFlow DELTA 2 vs Vtoman FlashSpeed 1000
What is the difference?
The EcoFlow DELTA 2 has 1.8 kW of power, 2.7 kW peak, a 1.02 kWh battery. The Vtoman FlashSpeed 1000 has 1 kW of power, 2 kW peak, a 828 Wh battery.
Both use LiFePO4 batteries.
Both are rated for 3000 cycles.
The EcoFlow DELTA 2 takes up to 500 W from solar, the Vtoman FlashSpeed 1000 takes up to 300 W from solar. The EcoFlow DELTA 2 charges faster from panels.
The EcoFlow DELTA 2 charges from a wall outlet to 100 % in 72 min, the Vtoman FlashSpeed 1000 charges from a wall outlet to 100 % in 70 min.
Both can add extra batteries.
Specs side by side
| EcoFlow DELTA 2 | Vtoman FlashSpeed 1000 | |
|---|---|---|
| Capacity (Wh) | 1024 | 828 |
| Continuous (W) | 1800 | 1000 |
| Peak (W) | 2700 | 2000 |
| Solar input (W) | 500 | 300 |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycles | 3000 | 3000 |
| Expandable | yes | yes |
| Weight (lb) | 26 | — |
| Warranty (yr) | — | 5 |
| Fridge run time | 19.3 h | 15.6 h |
| CPAP run time | 23.2 h | 18.7 h |
| Wi-Fi router run time | 67.6 h | 54.6 h |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-10-27 / 2026-10-26. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, EcoFlow DELTA 2 or Vtoman FlashSpeed 1000?
The EcoFlow DELTA 2. More capacity: 1024 Wh vs 828 Wh.
Which charges faster from solar, EcoFlow DELTA 2 or Vtoman FlashSpeed 1000?
The EcoFlow DELTA 2. Faster solar charging: 500 W input vs 300 W input.
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Compare other models → · All EcoFlow models · All Vtoman models