BLUETTI B300K Expansion Battery (2,764.8Wh) – Like New!

​Works perfectly! I bought this brand new in August 2026 for my solar setup. I was planning to expand my system with more solar panels, but ended up installing fewer than expected, so I don't produce enough energy to justify keeping this extra capacity.​

●What’s Included & Key Details:
​Condition: Like new, barely used, fully functional.
​Included Accessories: Comes with the original CA90 expansion cable.
​Proof & Verification: Included photos of original purchase/delivery from Amazon (August 7, 2026), a video showing it charging via solar, and app screenshots connected to my AC200PL power station.
​Unit Serial ID: B300K2528010031637 (QR code included in photos).
​Delivery: Happy to meet up or drop it off wherever you feel most comfortable!

●Key Specs & Highlights:
​Capacity: 2,764.8Wh
​Battery Chemistry: LiFePO4 (Lithium Iron Phosphate — built for 6,000+ long-life cycles)
​Built-in Port: Standalone 12W USB-A output to charge devices directly
​Dimensions: 20.67" × 12.87" × 8.23" (52.5 × 32.7 × 20.9 cm)
​Weight: 65.04 lbs (29.5 kg)
​Operating Temps: Charge: 32°F–104°F (0°C–40°C) | Discharge: -4°F–104°F (-20°C–40°C)

●System Compatibility & Max Capacity Power Station ModelConnection CableMax Expansion UnitsMax System Capacity

(BLUETTI Apex 300) Included CA90 CableUp to 20 Units58,000 Wh (58 kWh)

(BLUETTI AC500P090D) to P150D Cable*Up to 6 Units16,588 Wh (16.6 kWh)

(BLUETTI AC300) Included CA90 CableUp to 4 Units11,059 Wh (11.1 kWh)

(BLUETTI AC200L / AC200PL) Included CA90 CableUp to 2 Units7,574 Wh (7.6 kWh)

(BLUETTI AC200MAX) Included CA90 CableUp to 2 Units7,572 Wh (7.6 kWh)

Message me if you have any questions or want to arrange pickup/delivery!