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Allpowers R2500 vs Vtoman FlashSpeed 1500

What is the difference?

The Allpowers R2500 has 2.5 kW of power, 4 kW peak, a 2.02 kWh battery. The Vtoman FlashSpeed 1500 has 1.5 kW of power, 3 kW peak, a 1.55 kWh battery.

Both use LiFePO4 batteries.

The Allpowers R2500 is rated for 3500 cycles, the Vtoman FlashSpeed 1500 is rated for 3000 cycles.

The Allpowers R2500 weighs 64 lb, the Vtoman FlashSpeed 1500 weighs 41 lb. The Vtoman FlashSpeed 1500 is easier to carry.

Both have a 5-year warranty.

Both have 120 V AC output.

Both can add extra batteries.

Specs side by side

Allpowers R2500Vtoman FlashSpeed 1500
Capacity (Wh)20161548
Continuous (W)25001500
Peak (W)40003000
Solar input (W)1000—
ChemistryLiFePO4LiFePO4
Cycles35003000
Expandableyesyes
Weight (lb)6441
Warranty (yr)55
Fridge run time38 h29.2 h
CPAP run time45.6 h35 h
Wi-Fi router run time133.1 h102.2 h
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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, Allpowers R2500 or Vtoman FlashSpeed 1500?

The Allpowers R2500. More capacity: 2016 Wh vs 1548 Wh.

Which is lighter, Allpowers R2500 or Vtoman FlashSpeed 1500?

The Vtoman FlashSpeed 1500. Lighter: 41 lb vs 64 lb.

More comparisons

Compare other models → · All Allpowers models · All Vtoman models