Portable power station

BLUETTI AC300 + B300

The BLUETTI AC300 + B300 has 3,072 Wh rated capacity (about 2,480 Wh usable, measured) and a 3,000 W inverter. It can run all 28 of the 120 V household loads we track.

Discontinued in the US: The US store lists every AC300 variant as unavailable and titles them '(Discontinued)', e.g. '(Discontinued)BLUETTI AC300+B300K', '(Discontinued)BLUETTI AC300 Inverter Module Generator'. The AC300+B300 page shows all variants unavailable, and B300 is on BLUETTI's US 'End of Sale' list. BLUETTI's EU discontinued page names the Apex 300 as the replacement for 'AC300/AC500'.

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Rated: 3,072 Wh
Usable (measured): 2,480 Wh
AC output: 3,000 W
Surge: 6,000 W

Specs

Rated capacity	3,072 Wh^[source] Source note AC300 manual technical specification: 'Capacity 3072-12288Wh (60-240Ah)'. The AC300 is an inverter module with no battery, so the base configuration here is AC300 + 1 x B300 (3,072 Wh); the store variant is 'AC300+B300 \| 3000W, 3072Wh Power Kit'.
Usable capacity (AC)	2,480 Wh^[source] Source note GreenCitizen lab table (US 120 V, about 118 VAC) measured 2.48 kWh at a 2,662 W average load (run 4). Its six runs gave 2.48-2.58 kWh at about 1,230-2,663 W. GreenCitizen is a solar retailer; the battery configuration is not stated, but its efficiency figures match 3,072 Wh (one B300). Reviewed.com (AC300 + one B300) measured '84.4% discharge compared to the claimed capacity' with a 1,500 W heater (about 2,593 Wh). The lowest figure is used.
Battery chemistry	LiFePO4^[source] Source note Manual spec table: 'Battery Type LiFePO4'.
AC continuous output	3,000 W^[source] Source note Manual spec table: 'Rated Continuous Power 3000W'; US version '120VAC', 'Rated Output Current 25A'.
AC surge output	6,000 W^[source] Source note Manual 9.1.1: 'continuous 3000W Max. power of output in total, and the ability to support surges up to 6000W.' Spec table 'Power of Over-load': '3100W < load < 3750W, 2min; 3750W < load < 4500W, 5s; 4500W < load < 6000W, 500ms'.
AC outlets	7^[source] Source note Manual 9.1.1: 'AC300 is equipped with 7 AC(US, JP version)'; diagram 'JP/US Version 7 100-120V/20A', one of which is a NEMA TT-30. 'Only the NEMA TT-30 can generate 3000W,30A'; the standard outlets give '2000-2400W,20A'.
UPS / EPS switchover	20 ms^[source] Source note Manual FAQ 'What is the UPS switching latency?': '20ms from offline UPS.'
Expandable	Yes^[source] Source note Manual: the AC300 'supports up to four B300 battery packs connected'. The B300K page FAQ adds that it 'supports connecting with up to 4 B300 / B300K' (and the B500K FAQ allows up to 4 B500K).
Max expanded capacity	12,288 Wh^[source] Source note Manual spec table: 'Capacity 3072-12288Wh' (4 x B300). With 4 x B500K the B500K FAQ allows more, but BLUETTI does not state a total.
AC charging	3,000 W^[source] Source note Manual spec table: AC input 'Power of Charging 3000W Max'; 'Max. Input Current 30A', 'Preset at 15A, can be changed on screen'. The product description's '5400W Blazing Input Rate' is AC + solar combined. (full in about 1.0 h at best; see charge time)
Max solar input	2,400 W^[source] Source note Manual spec table: PV Input 'Max. Power of Input 1200W*2'. Section 8.2.1: 'The AC300+B300 can achieve a combined maximum of 2400W of total solar input.'
Cycle life	3,500+ cycles to 80% capacity^[source] Source note The cycle life belongs to the B300 battery, not the AC300 inverter. B300 page: '3500+ Cycles to 80% Original Capacity'.
Weight	127.2 lb^[source] Source note Sum of two official figures, because the system ships as two modules: AC300 manual 'Net Weight 21.6kg (47.62lbs)' plus B300 page '79.6lbs (36.1kg)'.
Warranty	4 years^[source] Source note US store product description: '*4 Years Worry-Free Warranty.'
Idle draw	Not published Source note No independent reviewer measurement found (searched 2026-10-19). A BLUETTI community forum user logged about 21.5 W with AC and DC off and about 101.8 W with AC on and no load; that is an anecdotal owner figure and is not used.
List price	$3,299^[source] Source note AC300+B300 kit: compare-at $3,299.00, last price $2,299.00, seen 2026-10-19. Every variant is unavailable.

Verified 2026-10-19. Notes under a value explain conflicting sources.

What it can run

Appliance	Average draw	Runs it?	Runtime
Refrigerator	67 W	Yes	37.2 h
Chest freezer	25 W	Yes	4.2 days
CPAP (no humidifier)	45 W	Yes	2.3 days
CPAP with heated humidifier	90 W	Yes	27.6 h
Sump pump (1/3 hp)	650 W	Yes	3.8 h
Sump pump (1/2 hp)	925 W	Yes	2.7 h
Gas furnace blower (1/2 hp)	550 W	Yes	4.5 h
Window AC (5,000 BTU)	347 W	Yes	7.1 h
Microwave	900 W	Yes	2.8 h
Coffee maker	1200 W	Yes	2.1 h
Laptop charger	60 W	Yes	41.3 h
Phone charger	20 W	Yes	5.2 days
Wi-Fi router / modem	15 W	Yes	6.9 days
TV (LED, 32-55 inch)	68 W	Yes	36.5 h
LED light bulb (each)	9 W	Yes	11.5 days
Space heater	1500 W	Yes	1.7 h
Oxygen concentrator (home, 5 L/min)	350 W	Yes	7.1 h
Starlink (Standard kit)	88 W	Yes	28.2 h
Desktop PC + monitor	90 W	Yes	27.6 h
Electric blanket (queen)	260 W	Yes	9.5 h
Box fan (20 inch)	83 W	Yes	29.9 h
Dehumidifier (35-50 pint)	487 W	Yes	5.1 h
Portable air conditioner (8,000-10,000 BTU)	1210 W	Yes	2 h
Electric kettle	1500 W	Yes	1.7 h
Portable induction cooktop (single burner)	1800 W	Yes	1.4 h
Air fryer	1500 W	Yes	1.7 h
Mini fridge (compact, ~3 cu ft)	25 W	Yes	4.1 days
Garage door opener	720 W	Yes	3.4 h

Runtime = 2,480 Wh usable (independently measured) ÷ the appliance's average draw. Fridges and freezers average their daily energy use; everything else counts as running the whole time. "No" means the load exceeds this model's continuous output or surge rating. Methodology.

Recharge with solar

Solar input: 12–150 V, 12 A, up to 2,400 W (Aviation (4-pin)).Manual 8.2: 'CP2 (2nd Charging Port)', 'Charging Method 3: Solar Panels (via 4pin aviation-MC4 cable)'.Manual 8.2.1: 'The AC300+B300 supports two PV inputs.' Both arrive through one 4-pin aviation socket (CP2: Pin1 DC1 PV+, Pin2 DC2 PV+, Pin3 DC1 PV-, Pin4 DC2 PV-) using the supplied 4-pin-aviation-to-MC4 cable. Panels that fit, fastest first, one panel at a time; days use Dallas, TX's sun (5.4 peak hours a day on average, 4.37 in December). Two or more panels charge faster, up to this station's 2,400 W input limit.

Panel	Plug	Real-world watts	Peak-sun hours to full	Days to full, Dallas
EcoFlow 400W Portable Solar Panel	Adapter cable	300 W	10.2 h	1.9 daysDecember: 2.3 days
Anker SOLIX PS400 Portable Solar Panel (400W)	Adapter cable	300 W	10.2 h	1.9 daysDecember: 2.3 days
BLUETTI PV350 (350W Solar Panel)	Adapter cable	263 W	11.7 h	2.2 daysDecember: 2.7 days
EcoFlow NextGen 220W Bifacial Portable Solar Panel	Adapter cable	165 W	18.6 h	3.4 daysDecember: 4.3 days
Jackery SolarSaga 200W Solar Panel	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
Anker SOLIX PS200 Portable Solar Panel (200W)	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
BLUETTI PV200 (200W Portable Solar Panel)	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
Renogy E.Flex 200W N-Type Portable Solar Panel (RPP200EF-SE-G2-US)	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
BougeRV New 200W Portable Solar Panel (FS200W)	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
Rich Solar MEGA 200 Portable Briefcase Solar Panel (RS-X200B)	Adapter cable	150 W	20.5 h	3.8 daysDecember: 4.7 days
Jackery SolarSaga 100 Air	Adapter cable	75 W	41 h	7.6 daysDecember: 9.4 days
Zignes 100W Solar Panel (sold by DJI Store)	Adapter cable	75 W	41 h	7.6 daysDecember: 9.4 days

Real-world watts = panel rating capped by this input's current limit (× the panel's voltage at max power) and maximum solar input, × 75%. Peak-sun hours to full = rated capacity (3,072 Wh, since charging fills the whole battery) ÷ real-world watts; days = those hours ÷ peak sun hours per day. Sunnier and cloudier cities are on each panel's page; full method in the methodology.

With expansion batteries

Official add-on batteries for the BLUETTI AC300 + B300, and how long a refrigerator (66.7 W average, from 1.6 kWh a day) runs with them attached.

Setup	Usable capacity	Refrigerator runtime	Batteries, list price
AC300 + B300 + 1 × B300 Expansion BatteryUp to 3 on one AC300 + B300Check price on BLUETTI	4,938 Wh (est.)	3.1 days	$1,699$1,699 each · source
AC300 + B300 + 2 × B300 Expansion Battery	7,396 Wh (est.)	4.6 days	$3,398 for 2$1,699 each · source
AC300 + B300 + 3 × B300 Expansion Battery	9,854 Wh (est.)	6.2 days	$5,097 for 3$1,699 each · source
AC300 + B300 + 1 × B300K Expansion BatteryUp to 3 on one AC300 + B300Check price on Amazon	4,692 Wh (est.)	2.9 days	$1,199$1,199 each · source
AC300 + B300 + 2 × B300K Expansion Battery	6,904 Wh (est.)	4.3 days	$2,398 for 2$1,199 each · source
AC300 + B300 + 3 × B300K Expansion Battery	9,116 Wh (est.)	5.7 days	$3,597 for 3$1,199 each · source
AC300 + B300 + 1 × B500K Expansion BatteryUp to 3 on one AC300 + B300Check price on Amazon	6,576 Wh (est.)	4.1 days	$1,999$1,999 each · source
AC300 + B300 + 2 × B500K Expansion Battery	10,672 Wh (est.)	6.7 days	$3,998 for 2$1,999 each · source
AC300 + B300 + 3 × B500K Expansion Battery	14,768 Wh (est.)	9.2 days	$5,997 for 3$1,999 each · source

Usable capacity = this station's usable capacity + each battery's independently measured usable capacity, or 80% of its rated capacity where no test exists ("est."). Runtime uses the same formula as everywhere else on the site. Battery specs come from the brand's official pages. Other BLUETTI batteries that don't work with the AC300 + B300: B210 Expansion Battery, B230 Expansion Battery.