
Anker SOLIX C1000 Gen 2 vs VTOMAN FlashSpeed 1000

Anker SOLIX C1000 Gen 2 leads by 31 points overall.
No purchase urgency: the performance leader is not at a Good or Great price today.

VTOMAN FlashSpeed 1000
- Home backup: Anker SOLIX C1000 Gen 2 — more usable capacity and AC output
- Camping & RV: Anker SOLIX C1000 Gen 2 — lighter and easier to carry
Score breakdown
Usable capacity and how much you can run at once.
Owner reputation, safety record, warranty, and build durability.
Wall and solar recharge speed.
Lightweight, portable, and quiet enough to live with.
Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.
Capacity truth
The watt-hours on the box aren't what reaches your devices. Same scale, both units.
The marketing number — total cell capacity.
What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.
The marketing number — total cell capacity.
~700-750 Wh usable estimated after AC conversion loss (Battery Skills, informal) · 12% below the label
Key specs, side by side
| Spec | Anker SOLIX C1000 Gen 2 | VTOMAN FlashSpeed 1000 |
|---|---|---|
| Usable capacity | 1,024 Wh | 828 Wh |
| Continuous power output | 2,000 W | 1,000 W |
| Surge power output | 3,000 W | 2,000 W |
| Max solar input | 600 W | 300 W |
| AC charge time (0–100%) | 49 min | 70 min |
| Weight | 11.3 kg | 14.4 kg |
| Rated cycle life | 4,000 cycles | 3,000 cycles |
Manufacturer-claimed unless marked verified (FCC/UL/DOE/lab). Hover any figure for its source. The better reading in each row is highlighted — lower wins for weight and recharge time.
Price & fair-price verdict
Each verdict compares today's price against that model's own tracked history — never MSRP theater.
Where these rank
- Anker SOLIX C1000 Gen 2 #1 of 8 in Quietest Power Stations · #3 Midsize (1 kWh class) in Best Portable Power Stations