Bluetti B300 Expansion Battery 3072Wh


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Product Description

Bluetti B300 Expansion Battery 3072Wh, 2 Year Warranty.


  • 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 (Sold separately), car charging or lead-acid battery.
  • Car charging and lead-acid battery charging need to be realized through D050S

Product Manual


SKU B300-UN-GY-BL-00

Brand Bluetti

GTIN 6970991290718

Warranty Period: 2 Years

Product Category Power Packs

Watt hours (Wh) 3072

Cycle Life (DOD – 80% under controlled conditions) 3500+

Battery Charge Temperature 0-40℃

Battery Discharge Temperature -20-40℃

Dimensions 520mm x 320mm x 266mm

Net Weight (kg) 36.1

Battery Types LiFePO4(Lithium Iron Phosphate)


B300 Battery Module Tutorial


BLUETTI AC300 Battery Expansion


BATTERY EXPANSION: How to connect AC200MAX with either B230 or B300 Battery Modules


Product Q&A

Ask Us a Question
  • Which BLUETTI power stations can work with B300?


    Except for AC300, an additional accessory is required for each station.

    AC200P: P090D to XT90 cable

    EB150: P090D to DC7909 cable

    EP500Pro: P090D to MC4 cable

  • Can I use BLUETTI B300 expansion battery alone?

    Yes. It comes with a 100W USB-C, a USB-A, and a 12V car socket, providing power for phones, laptops, car refrigerators, etc. 

  • How many B300 can I connect to AC300 or AC200MAX?

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

  • Does B300 support App control?

    Connect it to the AC300, pair them with BLUETTI App, and you can control the system at any time from anywhere.

  • Can I use B300 alone as a UPS?


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

    700W Max. with optional D050S DC Charging Enhancer*

    * Sold separately

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

    Yes, BLUETTI D050S DC Charging Enhancer* is required. * Sold separately 

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

    Yes, if the solar panels' specs fall in

    1) Total Voltage: 12-60V.

    2) Total Power: 200W Max.

    3) Include MC4 connectors. 

  • Can it charge and discharge at the same time?


  • 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 long can it run my device?

    Running time = Battery capacity x DoD x η ÷ Device rated power DoD refers to Depth of Discharge and η is local inverter efficiency.

    For B300, both DoD and η are 90%. If you run a 100W light bulb with it, the running time will be: 3,072Wh x 90% x 90% ÷ 100W ≈ 25hrs

    Note: The above data is for reference ONLY.

  • Is B300 waterproof?

     No. Also, please do NOT store it in a humid environment for a long time.

  • Is it possible to replace the built-in battery?

    No. If the battery pack is faulty or even dead, please contact BLUETTI Customer Service.

  • I'd like more tutorial videos on the AC300 and B300 combo.

    Sure, please follow BLUETTI Support onYouTube 


For details relating to this product's warranty CLICK HERE


    For details relating to our delivery process CLICK HERE

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