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BLUETTI AC500 + B300S | Home Battery Backup

Original price $3,950.00 - Original price $3,950.00
Original price
$3,950.00 - $3,950.00
Current price $3,950.00

BLUETTI AC500 + B300S | Home Battery Backup

  • 5,000W Rated Power (10,000W Surge)
  • Expandable Capacity From 3,072Wh to 18,432Wh
  • LiFePO4 Battery With 3,500+ Life Cycles to 80%
  • Smart APP Control (WiFi & Bluetooth Connection)
  • 240V/10KW Split Phase System With 2* AC500 & 2* B300S (Max. 36.8KWh)
  • 6 Ways to Recharge (AC/Solar/Car/Generator/Lead-acid Battery/Dual Charing (AC/AC+Solar)
  • 16 Versatile Outlets for 99% Devices
  • 24/7 UPS Home Backup
  • Modular Solar Power System for All Needs

    AC500 & B300S, the expandable power system, will definitely shift the way you harness the solar energy. It's designed to help you go through power outages, stay connected to unlimited energy wherever you are heading.

    5000W Pure Sine Wave Inverter

    This inverter delivers quality pure sine wave output and takes up to 10kW surge, ensuring anything you plug in will be running to its full functionality and capacity.

    Charge in Any Way You Like

    ​No matter where you are, you can charge your AC500 system at any time. With the wall outlet and solar panels plugged in, the AC500 system supports up to 8,000W* impressive input rate. Get the system recharged before you pack up for the camping, and your power will be ready when you are.At least 2*B300S packs required.

    Power Option for Personalization

    AC500 is 100% modular and can accept up to 6×B300S (3,072Wh each) expansion battery packs, adding up to an overall capacity of 18,432Wh – Power your whole family's basic needs for DAYS either in daily use or power outages!

    Take Care of Your Heavy-duty Equipment

    Connecting two AC500 units allows you to can run 240V appliances with ease. Plus, with 12*B300S batteries, you’ll get an impressive capacity of 36,864Wh to reduce grid dependence and pay less for electricity.



    3,072Wh (51.2V, 60Ah)
    Cell Chemistry:
    LiFePO4 (Lithium Iron Phosphate)
    Life Cycles:
    3,500+ Cycles to 80% Original Capacity
    Recharge to 80% Every 3-6 Months
    Management System:
    MPPT Charge Controller, BMS, etc.


    USB-C Port:
    1 x 100W Max.
    USB-A Port:
    1 x 18W
    DC Outlets:
    1 x 12V/10A (Car Outlet)
    *All regulated.


    AC Input:
    500W Max.
    Solar Input:
    500W Max., VOC 12-60VDC, 10A
    Car Input:
    12/24V from Cigarette Lighter Port
    Maximum Input:
    1,000W, with D050S DC Charging Enhancer


    240V Split Phase Bonding:
    Yes, Works with AC500
    Simultaneous Recharge & Discharge:
    83.8lbs (38kg)
    Dimensions (LxWxD):
    20.5 x 12.5 x 10.5in (52 x 32 x 26.6cm)
    Operating Temperature:
    -4℉-104℉ (-20℃-40℃)
    Storage Temperature:
    -4℉-104℉ (-20℃-40℃)
    UL2743, UKCA, RCM, PSE, FCC, CE



Q1: What is the output power of AC500?

4,500W Max. with 1*B300S

5,000W Max. with 2*B300S or more

3,000W Max. with 1*B300

5,000W Max. with 2*B300 or more.

Q2: How many B300 packs can be connected to AC500?


Q3: How many B300S packs can be connected to AC500?


Q4: Can B300S and B300 be mixed?

Yes. 4 packs in total.

Q5: Can I use AC500 alone?

No, it's 100% modular and needs to team with B300S/B300 to get its job done.

Q6: What is the max charging power of AC500?

  1. 3,000W max. with 1*B300
  2. 5,000W max. with 2*B300 or more
  3. 4,500W max. with 1*B300S (PV+AC)
  4. 8,000W max. with 2*B300S or more (PV+AC)

Q7: Can I use other brands' batteries?

No, AC500 is compatible with B300S or B300 ONLY.

Q8: What is the power consumption of AC500 when it's off/on?

  1. 11W when AC500 is on, DC and AC are off;
  2. 30W when AC and DC are on.

Q9: Do I need an extra cable to connect B300 and AC500?

Yes, P150D to P090D is required, you may order it separately in BLUETTI Store.

Q10: What is the difference between B300S and B300?

1) Current capacity: 130A for B300S while 75A for B300.

2) ONLY B300S features the automatic heating function.

3) Solar input: 500W for B300S while 200W for B300.

Q11: How does the heating function work?

When the temperature is below 0℃, the battery will be automatically heated once AC or PV charging is activated (input power>400W).

Q12: Is AC500 compatible with AC300's fusion box?


Q13: How to connect AC500 to the main panel?

Low Voltage Area: Match the transfer switch and smart home panel to the main panel.

High Voltage Area: Match the transfer switch to the main power box.

Q14: Can fusion box connect with AC500 and AC300 simultaneously?

Not recommended

Q15: What is the maximum power of AC500 when using the fusion box?

1) 7,200W when connected with P030A

2) 10,000W when directly connected to the distribution box.

Note: The split phase function is only available for US Version.

Q16: Is there a UPS function when using fusion box?

No, but we do have EPS (emergency power supply).

Q17: What is the switching time of the UPS?


Q18: Can I use third party solar panels to charge AC500?

Yes, the solar panels must meet the following conditions:

1) Total voltage:12-150V

2) Total power: 3000W max.

3) With MC4 connectors

Q19: Can I use rooftop solar panel to charge AC500?

Yes, but please note that your solar roof must meet:

  1. No micro-inverter
  2. Open circuit voltage 12-150V
  3. With MC4 connectors

Note: When OCV exceeds 150V, you may use BLUETTI D300S* to step down the voltage to achieve solar charging.

Q20: Does AC500 support charging and discharging at the same time?


Q21:How long will AC500 run my device?

Running time = battery capacity x DoD x η ÷ device rated power DoD: Depth of Discharge, η: local inverter efficiency. For AC500, both DoD and η are 90%. If you run a 1,000W microwave oven with a AC500 + B300S combo, the running time will be 3,072Wh × 90% × 90% ÷ 1,000W ≈ 2.5 hours


1) This formula doesn't apply to inductive loads with compressors, such as refrigerators, air conditioners, etc.

2) The above data is for reference ONLY

Q22: Is AC500 waterproof?

No, please keep it in a dry place.

Q23: Can I use the fusion box in high voltage areas?