BLUETTI B300S Expansion Battery | 3,072Wh ( Only Works With AC500 )

Save $200.00

Sale price$2,299.00 Regular price$2,499.00


  • 3,072Wh LiFePO4 battery for over 3,500 life cycles.
  • Standalone power station with 100W USB-C, 12V/10A car port and USB-A port.
  • Flexible charging via AC, solar and car power sources.
  • Responsive even in freezing days with Temperature Adaptive Function.
  • Compatible with AC500 for a maximum of 36,864Wh capacity. (2*AC500+12*B300S)

  • Flexible Recharging

    BLUETTI B300S takes up to 500W AC, solar, or car charging. Combine AC with solar or car input, you can top up B300S in less than 3.5-4 hours with a maximum of 1,000W* input rate.
    *The D050S DC charging enhancer is required.

    Versatile Power Source

    You can power your smartphones, laptops, fans, lights, refrigerators and more with specific outputs-100W USB-C, 12V/10A cigarette lighter, and 18W USB-A.

    Responsive Even in the Cold

    Waking up electronics on a freezing day may be time-consuming. But with the Temperature Adaptive Function, B300S will automatically heat up to work actively and smoothly as usual.

    Expandable Battery Pack

    As the companion battery pack to AC500, B300S has a capacity of 3,072Wh and lasts for 3,500+ cycles to 80% of its original capacity. Hook up 6*B300S with AC500, you'll get a powerhouse with 18,432Wh, enough to get you through a severe power outage.

    Never Run Out of Power

    Suitable for various occasions

    Tech Specs



    Capacity: 3,072Wh (51.2V, 60Ah) Cell Chemistry: LiFePO4 (Lithium Iron Phosphate) Life Cycles: 3,500+ Cycles to 80% Original Capacity Shelf-life: 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: Yes Weight: 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℃) Certification: UL Standard, CEC, DOE, FCC, CA Prop 65


    • Q1: How many B300S packs can be connected to AC500?

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

    • Q3: Can B300S and B300 be mixed in an AC500 power system?

      Yes. 4 packs in total.
    • Q3: Can B300S and B300 be mixed in an AC500 power system?

      Yes. 4 packs in total.
    • Q5: Can I use B300s alone as a UPS?

    • Q6: What is the maximum input charging power of the BLUETTI B300s?

      A:1000W Max. with optional D050S DC Charging Enhancer*

      * Sold separately

    • Q7: Can I use car cigaretter lighter or lead-acid battery to charge B300s?

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

      * Sold separately

    • Q8: Can I use third-party solar panels to charge the BLUETTI B300s?

      A:Yes, if the solar panels' specs fall in 1) Total Voltage: 12-60V
      2) Total Power: 500W Max.
      3) Include MC4 connectors.
    • Q9: Can it charge and discharge at the same time?

    • Q10: Can I use or charge B300s in sub-zero temperatures?

      Temperature ranges for B300S 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.
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