Vtoman FlashSpeed 1000 vs Westinghouse iGen1000s

What is the difference?

The Vtoman FlashSpeed 1000 has 1 kW of power, 2 kW peak, a 828 Wh battery. The Westinghouse iGen1000s has 1.5 kW of power, 3 kW peak, a 1.01 kWh battery.

The Vtoman FlashSpeed 1000 has a 5-year warranty, the Westinghouse iGen1000s has a 2-year warranty.

The Vtoman FlashSpeed 1000 charges from a wall outlet to 100 % in 70 min, the Westinghouse iGen1000s charges from a wall outlet to 100 % in 2 h. The Vtoman FlashSpeed 1000 is ready again sooner.

The Vtoman FlashSpeed 1000 can add extra batteries.

Specs side by side

	Vtoman FlashSpeed 1000	Westinghouse iGen1000s
Capacity (Wh)	828	1008
Continuous (W)	1000	1500
Peak (W)	2000	3000
Solar input (W)	300	—
Chemistry	LiFePO4	—
Cycles	3000	—
Expandable	yes	—
Weight (lb)	—	31
Warranty (yr)	5	2
Fridge run time	15.6 h	19 h
CPAP run time	18.7 h	22.8 h
Wi-Fi router run time	54.6 h	66.5 h
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Specs as read from manufacturer pages on 2026-10-26 / 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, Vtoman FlashSpeed 1000 or Westinghouse iGen1000s?

The Westinghouse iGen1000s. More capacity: 1008 Wh vs 828 Wh.

Which has the longer warranty, Vtoman FlashSpeed 1000 or Westinghouse iGen1000s?

The Vtoman FlashSpeed 1000. Longer warranty: 5 years vs 2 years.

More comparisons

Compare other models → · All Vtoman models · All Westinghouse models