Bluetti B300K Expansion Battery & USB/12V DC Power Station 2 | 2765WH

BLUETTI B300K Expansion Battery – 3072Wh

The BLUETTI B300K Expansion Battery is a high-capacity battery module designed to extend the runtime of compatible BLUETTI power stations. With a massive 3072Wh LiFePO₄ battery, it provides reliable, long-lasting energy for off-grid systems, home backup, and worksites.

Built for flexibility and scalability, the B300K allows users to increase total system capacity as power demands grow, making it ideal for serious energy setups.

Key Features

• 3072Wh LiFePO₄ Battery – High capacity with long lifespan
• Expandable Power System – Designed for use with BLUETTI power stations
• 4000+ Charge Cycles – Long-term durability and reliability
• Standalone Outputs – Can be used independently for DC applications
• Advanced BMS Protection – Safe and stable operation
• Stackable Design – Easily expand system capacity
• Durable Construction – Built for long-term use

Specifications

Battery

• Capacity: 3072Wh
• Type: LiFePO₄ (Lithium Iron Phosphate)
• Cycle Life: 4000+ cycles to 80%

Output (DC)

• USB-A: 1 × 18W
• USB-C: 1 × 100W
• 12V Car Output: 1 × 12V/10A

Input / Charging

• Charging via compatible BLUETTI power stations
• Supports solar and AC charging through main unit

Compatibility

• Compatible with BLUETTI AC series power stations (model dependent)

Other

• Weight: Approx. 36–38kg
• Features: BMS protection, expandable system support

What’s Included

• BLUETTI B300K Expansion Battery
• Connection Cable
• User Manual

Applications

• Expanding portable power station capacity
• Off-grid energy systems
• Home backup power
• Worksites and mobile trades
• Long-duration power requirements

Why Choose the B300K

The B300K is designed for users who need extended runtime and scalable power systems. It allows customers to build a larger energy setup without replacing their existing power station, making it a cost-effective upgrade for serious power needs.