Anker SOLIX C1000 Gen 2 vs Vtoman FlashSpeed 1000

What is the difference?

The Anker SOLIX C1000 Gen 2 has 2 kW of power, 3 kW peak, a 1.02 kWh battery. The Vtoman FlashSpeed 1000 has 1 kW of power, 2 kW peak, a 828 Wh battery.

The Anker SOLIX C1000 Gen 2 is rated for 4000 cycles, the Vtoman FlashSpeed 1000 is rated for 3000 cycles.

The Anker SOLIX C1000 Gen 2 takes up to 600 W from solar, the Vtoman FlashSpeed 1000 takes up to 300 W from solar. The Anker SOLIX C1000 Gen 2 charges faster from panels.

The Anker SOLIX C1000 Gen 2 charges from a wall outlet to 100 % in 49 min, the Vtoman FlashSpeed 1000 charges from a wall outlet to 100 % in 70 min. The Anker SOLIX C1000 Gen 2 is ready again sooner.

The Vtoman FlashSpeed 1000 can add extra batteries.

Specs side by side

	Anker SOLIX C1000 Gen 2	Vtoman FlashSpeed 1000
Capacity (Wh)	1024	828
Continuous (W)	2000	1000
Peak (W)	3000	2000
Solar input (W)	600	300
Chemistry	—	LiFePO4
Cycles	4000	3000
Expandable	—	yes
Weight (lb)	25	—
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
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Specs as read from manufacturer pages on 2026-10-25 / 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, Anker SOLIX C1000 Gen 2 or Vtoman FlashSpeed 1000?

The Anker SOLIX C1000 Gen 2. More capacity: 1024 Wh vs 828 Wh.

Which charges faster from solar, Anker SOLIX C1000 Gen 2 or Vtoman FlashSpeed 1000?

The Anker SOLIX C1000 Gen 2. Faster solar charging: 600 W input vs 300 W input.

More comparisons

Compare other models → · All Anker SOLIX models · All Vtoman models