The BLUETTI B500K is a higher-capacity expansion battery that adds 5,120Wh of LiFePO4 storage to compatible BLUETTI power stations, part of a modular, stackable system that scales from a few kWh up to 100kWh for whole-home backup.
Key Specs:
Capacity: 5,120Wh (5.12kWh)
Chemistry: LiFePO4
Cycle Life: 4,000+ cycles to 80% capacity
Compatible With: Apex 300, AC200L, AC500, and other BLUETTI ecosystem power stations
Weight: 99.2 lbs | Dimensions: 20.47" x 12.87" x 12.15"
Warranty: 4 years
Note: the B500K is an expansion battery only and requires a compatible host power station — it cannot operate independently. Pair it with your Apex 300 or AC-series unit to extend backup capacity for larger loads or longer outages.
