BLUETTI AC500 Home Battery Backup Generator | 5000W | 3000W Solar Input

The BLUETTI AC500 Is a 5,000W Modular Home Battery Backup That Scales With B300K Batteries

The BLUETTI AC500 is a 5,000W pure sine wave inverter (10,000W surge) designed to run your home's essentials during outages, power an RV or support an off-grid cabin. It is fully modular, with no built-in battery, so you build the system around B300K expansion batteries. Our listing offers the AC500 alone or with one to six B300K batteries, from 2,764.8Wh up to 16,588.8Wh per unit.

The AC500 recharges fast, with up to 5,000W from AC or a generator, up to 3,000W from solar and up to 8,000W combined. Pair two AC500 units with a P030A Fusion Box for 240V split-phase power and up to 33,177.6Wh with 12 B300K batteries.

BLUETTI AC500 Features

5,000W Output With 10,000W Surge

With two or more B300K batteries, the AC500 delivers up to 5,000W of continuous pure sine power. With one B300K, output is limited to 3,000W. The 10,000W surge rating helps start motors in pumps, refrigerators and tools.

16 Outlets Including RV and 240V-Ready Connections

Three 120V/20A outlets, a 30A L14-30, a 30A TT-30 and a 50A NEMA 14-50 cover household and RV loads. Two 100W USB-C, four USB-A, a 12V/30A RV outlet, a 24V/10A car outlet and two 15W wireless pads handle everything else.

Expandable From 2.7kWh to 16.6kWh

Each AC500 supports up to six B300K batteries at 2,764.8Wh each. BLUETTI estimates one B300K covers about one day at 3kWh per day, and six cover about six days.

Fast AC, Generator and Solar Charging

AC and generator charging run at up to 3,000W with one B300K and 5,000W with two or more, reaching 80% in about 50 minutes. Solar input accepts up to 3,000W at 12V to 150V. AC and solar together reach up to 8,000W.

24/7 UPS Backup

The AC500 switches to battery in 20ms when the grid goes down, protecting computers and other electronics from data loss.

240V Split Phase With Two Units

Connect two AC500 units through a P030A Fusion Box for up to 7,200W at 240V, or up to 10,000W when connected directly to a distribution panel by an electrician (US version).

Cold-Weather Battery Heating

B300K batteries heat themselves when it is below 32°F and AC or solar charging is active, so the system keeps working on cold days.

App Control

The BLUETTI app connects over WiFi or Bluetooth for real-time input and output, power settings and firmware updates.

Real-World Applications

Home backup. Run a refrigerator, sump pump, furnace fan, lights and internet through an outage, or connect through a BLUETTI AC500 Home Integration Kit.

RVs. Plug into the TT-30 or NEMA 14-50 outlet to power your RV, and recharge from solar on the roof.

Off-grid cabins and workshops. Run 120V tools and appliances, and add a second unit for 240V equipment.

How It Compares to Common Alternatives

Versus the BLUETTI Apex 300. The Apex 300 has a built-in 2,764.8Wh battery and newer features. The AC500 is a proven modular system that works with B300K and B300S batteries.

Versus gas generators. The AC500 runs silently with no fuel or emissions, provides UPS protection and recharges from solar.

Is the AC500 the Right Fit

• Battery required. The AC500 cannot run alone. It needs at least one B300K or B300S battery.
• Connection cable. BLUETTI requires a P150D to P090D cable to connect the AC500 to a B300K battery.
• Compatible batteries. Only BLUETTI B300K and B300S batteries work with the AC500. B300K and B300S can be mixed up to four packs total.
• Installation. Panel connections should be made by a licensed electrician.

This may be a good fit if

• You want 5,000W of backup power with room to grow
• You need RV-ready 30A and 50A outlets
• You want 240V by pairing two units

Common Questions

How Many B300K Batteries Can One AC500 Use?

Up to six, for 16,588.8Wh.

How Much Power Does the AC500 Use When Idle?

About 11W when on with AC and DC outputs off, and about 30W with AC and DC outputs on.

Can I Use Third-Party or Rooftop Solar?

Yes, if the array has MC4 connectors, a total voltage of 12V to 150V and no more than 3,000W. Rooftop systems must not use micro-inverters.

What's Included

• 1 x BLUETTI AC500
• 1 x 15A AC Charging Cable
• 1 x Solar Charging Cable (MC4 to Aviation)
• 1 x Car Charging Cable
• 1 x User Manual

Options with B300K batteries also include each B300K Expansion Battery with 1 x Battery Expansion Cable (P090A) and a User Manual.

Modular Backup Power for Your Home

The BLUETTI AC500 lets you build the backup system you need today and expand it later with more B300K batteries or a second unit for 240V. At Outbound Power, we can help you size the right number of batteries. If you have questions, our team is happy to help.

BLUETTI AC500 Manual