BLUETTI B300 Expansion Battery | 3,072Wh

Save $200.00

Model: BLUETTI B300
Number of battery pack:: 1*B300
Sale price$2,099.00 Regular price$2,299.00


  • Features with a 100W USB-C, a 12V/10A car output and a USB-A ports, you can use the B300 as a portable power station.
  • The smart MPPT inside of the B300 enables it to recharge quickly through solar power at a 200W maximum loading scale.
  • You can also recharge it by wall socket, car charging or lead-acid battery.
  • Car charging and lead-acid battery charging need to be realized through D050S.

    Flexible Recharging

    You can recharge BLUETTI B300 quickly with 200W Max. solar input thanks to the built-in MPPT. Besides, it also supports AC, car, and lead-acid battery charging. The car and lead-acid battery charging need a D050S.
    bluetti b300 charging

    Versatile Power Source

    You can power your smartphones, laptops, fans, lights, refrigerators, microwave ovens, and so on with specific output port - the 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A output ports.
    bluetti b300 outlets

    Expandable Battery Pack

    B300 has 3,072Wh capacity and over 3,500 life cycles with the LifePO4 battery cells, offering up to 80% of original capacity. Moreover, it will double, triple, even quadruple the total capacity with BLUETTI AC200MAX, AC200P, or AC300 series.
    bluetti b300 expansion battery

    Home Backup and Trip Power Bank

    Whether in a family gathering or camping trip, B300 will serve as your backup power supply or power bank. It powers your home and camping necessities well, and all you need to do is enjoy the good times.
    bluetti b300 home backup and trip power bank

    Never Run Out of Power

    Suitable for various occasions

    Tech Specs


    Capacity: 3,072Wh (51.2V, 60Ah) Type: LiFePO4 (Lithium Iron Phosphate) Life Cycles: 3500+ Cycles to 80% Original Capacity Shelf-life: Recharge to 80% Every 3-6 Months Management System: MPPT Controller, BMS, etc.


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


    AC Input: 500W Max. Solar Input: 200W Max., VOC 12-60VDC, 10A Car Input: 12/24V from Cigarette Lighter Port Max Input: 700W, With AC Adatper + Solar Input Simultaneously


    AC: ≈ 6.5~7 Hours at 500W Solar: ≈ 15.5~16 Hours at 200W
    (With prime sunshine, ideal orientation and low temperature)
    12V/24V Car Outlet (100W/200W: ≈ 30 or 15 Hours AC + Solar: ≈ 5 Hours at 700W
    (With prime sunshine, ideal orientation and low temperature)
    Solar + Solar: ≈ 5 Hours at 700W (D050S DC Charging Enhancer REQUIRED) Dual AC: ≈ 5 Hours at 700W (Extra adapter REQUIRED)


    240V Split Phase Bonding: Yes, work with AC300 Pass-through Charge: Yes Weight: 79.6lbs (36.1kg) 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℃) Certifications: UL Standard, CEC, DOE, FCC, CA Prop 65 Warranty: 48 Months (Enter to learn more about BLUETTI warranty policy)

    In The Box

    • Q1: Which BLUETTI power stations can work with B300?


      AC300/AC200/AC200P/AC200MAX/EB150/EB240/EP500Pro. Except for AC300, an additional accessory is required for each station.
      AC200/AC200P: P090D to XT90 cable
      EB150/EB240: P090D to DC7909 cable
      EP500Pro: P090D TO MC4

    • Q2: Can I use BLUETTI B300 expansion battery alone?

      A:Yes. It comes with a 100W USB-C, a USB-A, and a 12V car socket, providing power for phones, laptops, car refrigerators, etc.
    • Q3: How many B300 can I connect to AC300 or AC200MAX?

      A:AC300: Up to 4 B300 for 12,288Wh capacity.

      AC200MAX: Up to 2 B300 for 8,192Wh capacity.

    • Q4: Does B300 support App control?

      A:Connect it to the AC300, pair them with BLUETTI App, and you can control the system at any time from anywhere.
    • Q5: Can I use B300 alone as a UPS?

    • Q6: What is the maximum input charging power of the BLUETTI B300?

      A:700W Max. with optional D050S DC Charging Enhancer*

      * Sold separately

    • Q7: Can I use car cigaretter lighter or lead-acid battery to charge B300?

      A:Yes, BLUETTI D050S DC Charging Enhancer* is required.

      * Sold separately

    • Q8: Can I use third-party solar panels to charge the BLUETTI B300?

      A:Yes, if the solar panels' specs fall in 1) Total Voltage: 12-60V
      2) Total Power: 200W Max.
      3) Include MC4 connectors.
    • Q9: Can it charge and discharge at the same time?

    • Q10: Can I use or charge B300 in sub-zero temperatures?

      Temperature ranges for B300 are:
      Charge: 0-40℃ (32-104℉);
      Discharge: -20-40℃ (-4-104℉);
      Storage: -20-40℃ (-4-104℉).
      Technically, it can power electrical devices under such situations, but please avoid charging it.
    How-To Videos





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