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B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy
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B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy
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B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy
Click or scroll to zoom
Tap or pinch to zoom
B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy
Click or scroll to zoom
Tap or pinch to zoom
B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy
B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500 - Terra Fantasy

B500K2 5120Wh Expansion Battery for BLUETTI APEX300/AC200L/AC200PL/AC200MAX/AC300/AC500

$3,199.00
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BLUETTI B500K is a 4,960Wh high-capacity LiFePO₄ expansion battery designed for BLUETTI modular energy systems, compatible with models including Apex 300, AC200L, AC200PL,AC200MAX, AC300, and AC500. It provides flexible energy expansion, long cycle life, and reliable backup power for home, RV, and off-grid applications.

Features

  • 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, AC200PL, 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.

B500K2 is the 5120wh expansion battery suitable for BLUETTI APEX300.  It is the same as BLUETTI B500K1 but it comes with a shorter expansion cable allowing it to be stacked up with APEX300 nicely

If you have a APEX300 and want to stack a B500K under it please order B500K2.

You will need an extra P090-P150 cable if you want to connect B500K1/B500K2 with your AC500.

Description

Why Choose BLUETTI B500K?

Extend Your Backup Time

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

Up to 100 kWh Massive Expansion

Increase your energy storage as needed, from 5.12 kWh to over 100 kWh*. The B500K battery is compatible with various BLUETTI power stations for easy, cost-effective upgrades. *Note：Achieved with 3*Apex 300 + 18*B500K units

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 700 W DC output for your devices. Note: 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.

BATTERY INFO

Capacity 5,120Wh
Type LiFePO₄ (Lithium Iron Phosphate)
Life Cycles 4,000+ cycle to 80% original capacity

GENERAL

Compatible with AC200L, AC200PL,AC200MAX, AC300, AC500, Apex300, B300K
Weight 45 kg / 99.21 lbs
Dimensions (L x W x D) 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.
Discharging Current 70A Max.
2 × Expansion Port 58.4VDC Max., 90A Max.
Warranty 4 Years

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