Why Choose BLUETTI B500K?

Feature：

  • 5.12 kWh, Lasts Up to 10 Years: Supplies reliable energy for years with over 4,000 cycles.
  • Scalable to 100 kWh: Easily expands your setup for partial, whole-home, or even small business backup.
  • Universal BLUETTI Compatibility: Works seamlessly with Apex 300, AC300, AC500, AC200L, AC200MAX, and upcoming models.
  • Part of a Smarter Power System: Pairs with SolarX 4K, Hub D1, and more for clean, connected energy.
  • More Durable & Safe: Wireless internal frame makes it resilient to real-world knocks and shocks.
  • Wall or Trolley Setup: Mount to save space or move with ease for flexible, convenient use.

Extend Your Backup Time

From outage protection to camping trip and off-grid working, the B500K keeps you powered for longer — more freedom and peace of mind.

Adapt to All Your Needs

The B500K either expands your BLUETTI power stations, or serves as a high-capacity power bank with ecosystem components,

delivering 700W DC output for your devices.

* A P090D to P150D cable is required for connecting with AC500 and sold separately.

Made It Safe, Reliable, and Long-lasting

The B500K adopts advanced LiFePO₄ batteries for over a decade of safe use.

Its third-gen wireless internal design and efficient cooling fan ensure stable performance, even in challenging conditions.

Fixed or Movable Setup

Secure the B500K to the wall or rack of your home or RV using its mounting holes, or attach it to the Foldable Trolley 2* for a mobile power supply.

*Note: Fordable Trolley 2 sold separately.

Comparison

  • [Scalable Capacity Expansion] - 5120Wh per pack with 4,000+ cycles to 80% capacity. Expand up to 6 B500K per Apex 300. 3 Apex 300 with 18 B500Ks achieve an incredible 100kWh capacity.
  • [Widely Compatible] - B500K works with past and future BLUETTI portable power station including AC200L AC200MAX AC300 AC500 and Apex 300. This listing includes the CA90 cable (compatible only with Apex 300).
  • [Next-Gen Design Architecture 2.0] - The B500K expansion battery bulit with a cable-free internal layout, wireless internal structure lowers failure risks and saves space, resulting in a more compact, easy-to-move product.
  • [Usage Ecosystem] - Beyond capacity expansion, the B500K works with BLUETTI accessories for versatile charging and discharging: SolarX 4K (4000W), Alternator Charger (560-1000W), Hub D1 (700W DC), and future accessories.
  • [What You Get] - BLUETTI B500K expansion battery, optional battery connection cable, and user manual.
 
PREVIEW

BATTERY INFO

  • Model

    B500K

  • Battery Capacity

    5,120Wh

  • Battery Type

    LiFePO₄ (Lithium Iron Phosphate)

  • Cycle Life

    4,000+ cycle to 80% original capacity

GENERAL

  • Weight

    45kg (99.21lbs)

  • Dimensions (L × W × H)

    520 × 327 × 308.5 mm / 20.47 × 12.87 × 12.15 in

  • Charging Temperature

    0°C to 40°C / 32°F to 104°F

  • Discharging Temperature

    -20°C to 40°C / -4°F to 104°F

  • Storage Temperature

    Up to 1 month: -20°C to 40°C / -4°F to 104°F Up to 6 months: -20°C to 25°C / -4°F to 77°F

  • Working Humidity

    5% to 95%RH

  • Charging Current

    65A Max. (Current may decrease outside specified temperatures)

  • Discharging Current

    70A Max.

  • 2 × Expansion Port

    58.4VDC Max., 90A Max.

  • Warranty

    4 Years

  • Compatibility

    AC200L, AC200MAX, AC300, AC500, Apex 300, B300K

*Download the User Manual of B500K:
 
 
FAQs:
Q1:How to claim warranty?
A1:Once you receive your product, please register to claim your warranty on our website.
 
Q2:Why doesn't the B500K drain all its power?
A2:The B500K retains a portion of its energy to prevent overdischarging, which helps protect the battery's lifespan and ensures long-term performance.
 
Q3:Can I leave the battery uncharged after fully discharging?
A3:No, it's important to recharge the B500K in time before the SoC drops to 1% to avoid potential damage. Additionally, ensure it's placed in an environment of at least 10°C (50°F) for at least 12 hours before recharging.
 
Q4:Which BLUETTI power stations can work with B500K?
A4:B500K is compatible with AC200L, AC200MAX, AC300, AC500 and Apex 300. When connecting to AC500, the P090D to P150D cable is required for connecting with AC500 and sold separately.
 
Q5:Can I use the B500K alone?
A5:No.Note: The B500K can only be charged by connecting to the AC500/AC300/AC200L/AC200MAX/Apex 300.
 
Q6:Does the B500K support power bank mode?
A6:No
 
Q7:How many B500K batteries can l connect with AC300? Can l mix B500K/B300/B300S?
A7:The AC300 supports connecting with up to 4 * B300 / B300K / B500K using the P090A cable.
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