Anker SOLIX C1000 vs Bluetti AC180: lighter per watt-hour vs longer cycle rating

Specifications checked against manufacturer pages on 2026-08-23.

The Anker SOLIX C1000 (1,056 Wh, 1,800 W) and the Bluetti AC180 (1,152 Wh, 1,800 W), compared on the figures their makers publish. On the normalized ratios, the C1000 carries more per pound (37.1 Wh/lb vs 32.6 Wh/lb); the AC180 is rated for more cycles (3,500 vs 3,000).

Specifications, side by side

Numbered notes below the table give the source location or a caveat for figures that need one; check marks
mark the better figure where one can be judged; “Manufacturer does not state” means absent from that maker’s page as of
its check date listed under Sources. UPS switchover is how long the outlets go dark when grid power drops.

^* Calculated: rated capacity × an assumed 85–90% conversion efficiency; no maker publishes a usable figure.

Notes on the figures

1. C1000, surge: Anker labels 2,400 W as ‘SurgePad’, a mode that raises output for resistive loads such as heaters. It is not a conventional motor-start surge rating and should not be read as one.
2. AC180, surge: The spec table labels this “Surge Power”, but the same 2,700 W figure is Bluetti’s Power Lifting Mode for resistive heating loads (FAQ Q1: “AC180 can run high-power heating devices up to 2,700W … Do NOT use this unit to run an air conditioner or washing machine.”). Treat as a boost mode for resistive loads; it is not a conventional motor-start surge rating and should not be read as one.
3. C1000, full recharge: Stated as ‘a full charge in under an hour’; 60 minutes is the upper bound, not a precise figure.
4. AC180, recharge: Bluetti publishes a 0–80% time (45 minutes), not a full-charge time.
5. C1000, UPS switchover: Stated as under 20 ms; the manufacturer gives an upper bound, not a measured figure.
6. C1000, expandable: The expansion battery was marked ‘coming soon’ on the product page when checked; confirm it is actually on sale before counting on it.
7. AC180, expandable: Bluetti’s B-series batteries can charge the AC180 but do not extend its capacity as a single system.
8. AC180, AC input: Turbo Mode figure from SPECS > INPUT.
9. AC180, AC outlets: From SPECS > OUTPUT.
10. C1000, USB-C: Two USB-C ports; highest single port is 100W.
11. AC180, USB-C: From SPECS > OUTPUT.
12. AC180, app: Bluetooth only; the page does not claim Wi-Fi.
13. AC180, warranty: From SPECS > GENERAL.
14. AC180, weight: Bluetti’s page gives 35.3 lb in the spec table and 37 lb in the description; we use the spec table.
15. C1000, price: Manufacturer list price when checked; a $20 code brought it to $429.99 that day.
16. AC180, price: Manufacturer price when checked; no separate list price was shown.

The same specs, normalized

Ratios, so the bigger unit does not win by default.

Definitions and direction of each ratio: How we verify. A recharge rate marked ≥ is computed from an upper-bound recharge time, so the true rate is at least that figure; no check mark on that row.

What each one runs, for how long

Calculated, not measured: hours = rated Wh × efficiency ÷ (appliance W × duty); assumptions on How we verify. “Unlikely to start”: start-up surge exceeds the stated surge rating. “Start-up not assessed” appears where the start-up draw meets or exceeds the unit’s continuous rating and the unit states no conventional motor-start surge to check it against (AC180 and C1000); the hours assume the motor starts.

What the differences mean

Weight for the capacity. The C1000 carries 37.1 Wh/lb against 32.6 Wh/lb for the AC180. Both are two-hands-and-a-flat-surface units; the difference matters if the unit moves between car, porch and basement.

Cycle rating. The AC180 is rated for 3,500 cycles against 3,000 for the C1000, both to the same remaining-capacity threshold — otherwise we would not compare them. At one full cycle a week the difference is measured in years, not months; at occasional outage use neither limit is reached.

Output for the money. 4.00 W/$ on the C1000 against 3.61 W/$ on the AC180: if what you need is to run a high-draw appliance rather than to run a small one for days, this ratio is the one to read.

Which one, and for whom

On normalized measures the C1000 leads on watt-hours per pound (37.1 Wh/lb vs 32.6 Wh/lb) and continuous watts per dollar (4.00 W/$ vs 3.61 W/$). The AC180 answers on rated cycle life (3,500 vs 3,000). What decides it is the figure your outage actually tests:

• CPAP overnight. Switchover: C1000 under 20 ms, AC180 no UPS figure stated. A 40 W CPAP runs roughly 18–22 hr on the C1000 and 20–24 hr on the AC180. Both run the night; the AC180 states no UPS figure, which matters more overnight than the hour difference.
• Keeping a refrigerator cold. Start-up comes first. The C1000 states a boost figure rather than a motor-start surge rating; the AC180 states a boost figure rather than a motor-start surge rating. A full-size refrigerator needs about 900 W to start.
• A multi-day outage with a generator or solar to recharge from. Full recharge: C1000 under 60 min, AC180 0–80% in 45 min (no full-charge time stated). These are not comparable: Bluetti states no full-charge time for the AC180.

Related reading

A 1,056–1,152 Wh battery cannot do what a gasoline generator does — the runtime table shows a 1,500 W space heater emptying either unit in 0.6–0.7 hr — but it also cannot poison a household. Our CPSC revision matrix tracks how the official count of generator carbon-monoxide deaths has changed across report editions, and this page puts every verified unit on the same refrigerator scenario.

Other comparisons with these models

• Bluetti AC180 vs Jackery Explorer 1000 v2
• Bluetti AC180 vs EcoFlow DELTA 2
• Anker SOLIX C1000 vs EcoFlow DELTA 2
• Anker SOLIX C1000 vs Jackery Explorer 1000 v2
• Anker SOLIX C1000 vs EcoFlow DELTA 3

Sources and method

• Anker SOLIX C1000: manufacturer product page, checked 2026-08-23.
• Bluetti AC180: manufacturer product page, checked 2026-08-23.

Published specifications only; no bench tests. Method: How we verify.
More: Comparisons.