BLUETTI Apex 300 Portable Power Station

What Can It Run? (In Plain English)

With 2,764.8Wh of capacity as standard and a huge 3,840W of continuous output (7,680W surge), the Apex 300 is designed to anchor a whole-home or off-grid power system, running heavy-draw appliances simultaneously.

• A full-size fridge (~150W): around 15–16 hours of continuous running
• A small camping fridge (~60W): around 39 hours
• An induction cooktop or portable air conditioner (~2000W): around 1 hour 10 minutes

Add a BLUETTI B300K expansion battery and total capacity doubles to 5,529.6Wh, on the same 3,840W output:

• Full-size fridge: runtime doubles from ~16 hours to ~31 hours (+15 hours)
• Camp fridge: from ~39 hours to ~78 hours (+39 hours, over three days)
• Induction cooktop / air conditioner: from ~1 hour 10 minutes to ~2 hours 20 minutes (+1 hour 10 minutes)

Add a BLUETTI B500K expansion battery instead and total capacity climbs to 7,884.8Wh, nearly triple the base unit:

• Full-size fridge: runtime extends from ~16 hours to ~45 hours (+29 hours)
• Camp fridge: from ~39 hours to ~112 hours (+73 hours, over four and a half days)
• Induction cooktop / air conditioner: from ~1 hour 10 minutes to ~3 hours 20 minutes (+2 hours 10 minutes)

Up to six B300K/B300S/B300 batteries can be daisy-chained for whole-home scale storage — get in touch if you're planning a larger system.

Figures are estimates based on typical appliance draw and around 15% inverter loss — actual runtime varies with the appliance, ambient temperature and load.

The BLUETTI Apex 300 is a whole-home-capable power station designed for serious off-grid living, not just emergency backup. With 2,764.8Wh of LiFePO4 storage as standard and a huge 3,840W continuous output (7,680W surge across three individual 15A outlets), it can run heavy-draw appliances — induction cooktops, air conditioners, water pumps — simultaneously, and it's rated for 6,000+ cycles with a claimed 17-year service life.

What makes the Apex 300 stand out is scalability: connect up to six B300K/B300S/B300 expansion batteries to grow storage well into the tens of kilowatt-hours, with combined solar input capacity up to 30,720W across the system. On the base unit alone you get dual 1,200W MPPT solar inputs, fast AC charging up to 3,450W, and an Anderson port for heavy-duty 12V/24V connections. A built-in display, app control and 20ms UPS switchover round out a unit built to anchor a full off-grid or backup power system.

• 2,764.8Wh LiFePO4 battery (51.2V/54Ah), 6,000+ cycle lifespan
• 3,840W continuous output across 3 AC outlets, 7,680W surge/lifting power
• Dual 1,200W MPPT solar inputs (12–60VDC, 20A each) on the base unit
• AC charging up to 3,450W; combined AC+solar input up to 6,240W with expansions
• Expandable with up to 6 B300K/B300S/B300 batteries for whole-home scale storage
• Ports include 2× 100W USB-C, 2× USB-A, dual DC5521, cigarette lighter and Anderson port
• WiFi/Bluetooth app control, integrated display, 20ms UPS switchover
• 5-year manufacturer warranty