Anker SOLIX C800 X vs Bluetti AC50B

Anker SOLIX C800 X

63BatteryRank score · Balanced

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Decision readout

Better station

Anker SOLIX C800 X leads by 23 points overall.

Bluetti AC50B

40BatteryRank score · Limited

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What changes the decision

Home backup: Anker SOLIX C800 X — more AC-delivered capacity and higher AC output
Camping & RV: Bluetti AC50B — lighter and easier to carry

01 · Score evidence

Score breakdown

Anker SOLIX C800 X

Overall

Bluetti AC50B

POWER

Anker SOLIX C800 X +36

Battery-side usable capacity and how much you can run at once.

TRUST

Anker SOLIX C800 X +8

Owner reputation, safety record, warranty, and build durability.

CHARGING

Anker SOLIX C800 X +21

Wall and solar recharge speed.

LIVABILITY

Bluetti AC50B +33

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.

02 · Usable energy

Capacity truth

The watt-hours on the box aren't what reaches your devices. Same scale, both units.

Anker SOLIX C800 X

Rated (on the box)

768 Wh

claimed sourceankersolix.com ↗2026-07-04

The marketing number — total cell capacity.

AC deliveredmeasured

580 Wh

verified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04

~580 Wh extracted at 1200W over 29 min (Trusted Reviews) · 24% below the label

Bluetti AC50B

Rated (on the box)

448 Wh

claimed sourcesupport.bluettipower.com ↗2026-07-27

The marketing number — total cell capacity.

AC delivered (est.)

381 Wh

estimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on Anker SOLIX C800 X and Bluetti AC50B
Device	Anker SOLIX C800 X	Bluetti AC50B	Assumption
CPAP (humidifier off)	about 8.1 nights	about 5.3 nights	9 W · 2026-07-06
CPAP (heated humidifier on)	about 1.3 nights	about 0.9 nights	56 W · 2026-07-06
Refrigerator (full-size)	about 9.2 hours	about 6.0 hours	180 W × 35% duty cycle · 2026-07-06
Wi-Fi router + modem	about 32 hours	about 21 hours	18 W · 2026-07-06
Laptop (65W charger)	about 18 hours	about 12 hours	65 W × 50% duty cycle · 2026-07-06
Phone (one full charge)	about 29 full charges	about 19 full charges	20 W · 2026-07-06

One device at a time; estimates use each station's usable AC energy. Build your own load →

04 · Sourced hardware

Key specs, side by side

Key sourced specifications for Anker SOLIX C800 X and Bluetti AC50B
Spec	Anker SOLIX C800 X	Bluetti AC50B
AC-delivered capacity	580 Whverified. Show source verified source~580 Wh extracted at 1200W over 29 min (Trusted Reviews)2026-07-04	381 Whest.. Show source estimated sourcesupport.bluettipower.com ↗2026-07-27
Continuous power output	1,200 W. Show source claimed sourceankersolix.com ↗	700 W. Show source claimed sourcesupport.bluettipower.com ↗
Surge power output	1,600 W. Show source claimed sourceankersolix.com ↗	—
Max solar input	300 W. Show source claimed sourceankersolix.com ↗	200 W. Show source claimed sourcesupport.bluettipower.com ↗
AC charge time (0–100%)	58 min. Show source claimed sourceankersolix.com ↗	—
Weight	10.9 kg. Show source claimed sourceankersolix.com ↗	6.7 kg. Show source claimed sourcesupport.bluettipower.com ↗
Rated cycle life	3,000 cycles. Show source claimed sourceankersolix.com ↗	3,000 cycles. Show source claimed sourcesupport.bluettipower.com ↗

Only show differences

AC-delivered capacity580 Wh381 Wh
Continuous power output1,200 W700 W
Surge power output1,600 W—
Max solar input300 W200 W
AC charge time (0–100%)58 min—
Weight10.9 kg6.7 kg

Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.

Where these rank

Anker SOLIX C800 X #8 of 10 in Best Power Stations for Photographers & Drones
Bluetti AC50B #4 of 4 in Best 500 Wh Stations · #9 of 10 in Fastest AC-Charging Power Stations

Quick answers

Is the Anker SOLIX C800 X better than the Bluetti AC50B?: Anker SOLIX C800 X leads by 23 points overall.
Which has more usable capacity, the Anker SOLIX C800 X or Bluetti AC50B?: The Anker SOLIX C800 X, by 199 Wh — 580 Wh versus 381 Wh, a 52% advantage. At a 60 W load that is roughly 3.3 extra hours before the battery is empty. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices, which is always less than the number on the box.
Which has more AC output, the Anker SOLIX C800 X or Bluetti AC50B?: The Anker SOLIX C800 X: 1,200 W versus 700 W continuous. That gap matters only if a load sits between the two numbers — below 700 W both run it, above 1,200 W neither does. Neither model publishes a surge figure we can source, so startup capability is unresolved here — check it before planning around a motor or compressor load.
How does runtime compare between the Anker SOLIX C800 X and Bluetti AC50B?: On the same sourced load — a refrigerator (full-size) — the Anker SOLIX C800 X runs longer: 9.2 hours against 6. These are planning estimates from each model's AC-delivered capacity, not stopwatch tests; real duty cycle and temperature move them.
Which is lighter, the Anker SOLIX C800 X or Bluetti AC50B?: The Bluetti AC50B, by 4.2 kg (6.7 kg versus 10.9 kg). Both weights are manufacturer figures for the bare unit; cables and a solar panel add to whatever you actually carry.
Which model should I buy for my use case?: On the sub-scores that describe each use case: the Anker SOLIX C800 X for home backup; the Bluetti AC50B for camping & rv. They split, so the honest answer depends on which of those you are actually buying for.

Anker SOLIX C800 X vs Bluetti AC50B