Bluetti B500K Expansion Battery & USB/12VDC Power Station (5120WH)

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
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 700 W DC output for your devices.
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.
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