Which generator delivers more running wattage, the AC300 + B300K (2,764Wh LiFePO4) or the DELTA 2 Max (2kWh LiFePO4)?

Bluetti AC300 + B300K (2,764Wh LiFePO4) delivers higher continuous output with 3000 running watts on gasoline.

Is the AC300 + B300K (2,764Wh LiFePO4) quieter than the DELTA 2 Max (2kWh LiFePO4)?

EcoFlow DELTA 2 Max (2kWh LiFePO4) is quieter at 50% load, measured at 31.5 dBA at 23 feet.

Which model is better suited for a whole home transfer switch interlock?

Bluetti AC300 + B300K (2,764Wh LiFePO4) features a factory floating neutral ready for standard transfer switch hookup without modification.

ReaLoadREVIEWS

Home Backup & Portable Power Guide

ReaLoad Engineering Benchmark

Bluetti AC300 + B300K (2,764Wh LiFePO4) vs. EcoFlow DELTA 2 Max (2kWh LiFePO4)

Highlight Differences

Fuel Benchmark:

Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

Bluetti AC300 + B300K (2,764Wh LiFePO4) delivers 6,000W surge, sufficient for a 3.5-Ton central A/C with soft-starter. Inverters under 7,500W surge will trip breaker overcurrent protection on direct compressor starts.

72-Hour Fuel Logistics

At 50% load over 72 hours, continuous gasoline generators consume ~56 gallons (11x 5-gallon cans). Direct utility Natural Gas hookup eliminates fuel storage degradation, winter freezing, and gas station queues.

NEC 250.20 Neutral Bonding

Bluetti has factory floating neutral, safely compliant with 3-pole transfer switches and manual panel interlocks without ground loop faults.

Natural Gas Leader

Bluetti AC300 + B300K (2,764Wh LiFePO4)

3,000 W running on NG (+600 W lead)

Acoustic Winner

EcoFlow DELTA 2 Max (2kWh LiFePO4)

29 dBA at 23ft (-2 dBA quieter)

Easiest Home Hookup

Bluetti AC300 + B300K (2,764Wh LiFePO4)

Floating Neutral (Home Interlock Ready)

Best $/Running Watt

EcoFlow DELTA 2 Max (2kWh LiFePO4)

$0.58/W ($1,399)

Technical Specification	Enclosed Inverter Bluetti AC300 + B300K (2,764Wh LiFePO4) $1,899Read Review	Enclosed Inverter EcoFlow DELTA 2 Max (2kWh LiFePO4) $1,399Read Review
Running Watts Power Output	3,000 WBest	2,400 W
Peak Starting Surge Power Output	6,000 WBest	4,800 W
240V Output Amps Power Output	12.5 ABest	10 A
Sine Wave Purity Power Quality	<1.3% THD (Pure Sine)Best	<1.3% THD (Pure Sine)Best
Fuel Burn (25%) Fuel Consumption	0.00 GPH (Solar/Battery)Best	0.00 GPH (Solar/Battery)Best
Fuel Burn (50%) Fuel Consumption	0.00 GPH (Solar/Battery)Best	0.00 GPH (Solar/Battery)Best
Runtime (25% Load) Fuel Consumption	2.76 kWh CapacityBest	2.05 kWh Capacity
Fuel Tank Capacity Fuel Consumption	No Tank (LiFePO4)Best	No Tank (LiFePO4)Best
14-50R 50A Outlet Outlets & Receptacles	1x NEMA 14-50R (50A)Best	1x NEMA 14-50R (50A)Best
L14-30R 30A Outlet Outlets & Receptacles	1x NEMA L14-30R (30A)Best	1x NEMA L14-30R (30A)Best
TT-30R RV Outlet Outlets & Receptacles	NoneBest	NoneBest
5-20R Duplex Outlets Outlets & Receptacles	2x NEMA 5-20R DuplexBest	2x NEMA 5-20R DuplexBest
Engine Start Method Starting & Safety	Push-Button Instant UPS (0ms)	Push-Button Instant UPS (0ms)
Carbon Monoxide Sensor Starting & Safety	Zero CO Emission (Safe Indoors)	Zero CO Emission (Safe Indoors)
Noise Level (23ft) Acoustics & Physical	31 dBA	29 dBABest
Chassis Dimensions Acoustics & Physical	20.5" L × 12.5" W × 24.2" H	19.6" L × 9.5" W × 12" H
Dry Weight Acoustics & Physical	111 lbs	50.7 lbsBest
Neutral Bonding NEC 2026 Hookup	Floating Neutral (Ready for Home Interlock)	Floating Neutral (Ready for Home Interlock)
Verified Street Price Cost & Value	$1,899.00	$1,399.00Best

ReaLoad Technical Verdict Dossier

Motor Inrush Starting Surge

The Bluetti AC300 + B300K (2,764Wh LiFePO4) delivers 6000W peak surge compared to 4800W on the EcoFlow DELTA 2 Max (2kWh LiFePO4). Starting a 3.5-ton central air conditioner requires an electronic soft-starter to reduce compressor inrush below breaker trip thresholds.

72-Hour Outage Fuel Logistics

At 50% electrical load over a 72-hour power outage, AC300 + B300K (2,764Wh LiFePO4) consumes about 50 gallons while DELTA 2 Max (2kWh LiFePO4) burns 50 gallons. Homeowners need 11 sealed 5-gallon gasoline cans or utility natural gas.

Home Panel Interlock Safety

Bluetti AC300 + B300K (2,764Wh LiFePO4) provides a factory floating neutral ready for standard 3-pole manual transfer switches. Follow NEC 250.20 safety grounding rules.

Head-to-Head Telemetry Comparison

Specification	Bluetti AC300 + B300K (2,764Wh LiFePO4)	EcoFlow DELTA 2 Max (2kWh LiFePO4)
Running Watts (Gasoline)	3000W	2400W
Peak Watts (Gasoline)	6000W	4800W
Operating Noise @ 23ft	33.5 dBA	31.5 dBA
Factory Neutral Status	Floating Neutral	Floating Neutral
Dry Weight	111 lbs	50.7 lbs
Verified Street Price	$1899	$1399