Bluetti B300K Expansion Battery

• 2,764.8Wh Capacity with 4,000+ Life Cycles: Perfectly designed for daily power needs or as a reliable backup during outages.
• Automotive-Grade LiFePO₄ Battery: Enjoy an extended lifespan and enhanced safety with cutting-edge battery technology.
• Seamless Compatibility: Effortlessly integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations.
• Maximize Your Power: Expand up to a massive 16,588Wh when connected with AC500 for diverse energy needs.
• 3+1 Years Warranty*: Long-term reliability guaranteed to ensure your battery is well protected.
• Standalone Power Source: Charge your essential devices anytime with the convenient USB-A Port.

Power Expansion for Every Situation

The B300K adapts to your life, whether you're safeguarding your home during outages or powering an off-grid adventure. Stack multiple B300K batteries, or mix and match with other BLUETTI batteries for a customized energy solution that ensures you're never caught without power, no matter where you are.

Great Compatibility for More Possibilities

The B300K seamlessly integrates with AC200L, AC200MAX, AC300, and AC500* power stations, giving you the flexibility to scale your energy setup as your needs grow. Whether you're prepping for more power at home or gearing up for your next adventure, the B300K has you covered.

P090D to P150D cable is required for connecting with AC500 and sold separately.

Built to Protect, Designed to Last

The B300K is designed to excel in safety and reliability. Featuring square LiFePO₄ batteries and cutting-edge AI-BMS technology, together with a robust aluminum casing, advanced wireless components, and efficient cooling fan ensure this battery stands the test of time, giving you a power source you can count on in any situation.

Fast Charging Comes in Handy

When paired with the AC300 or AC500, this battery charges up to 80% in just 45 minutes, so you can get back to what matters without any significant interruption, your work, activities, or emergencies ...whether you're at home or on the go.

A Standalone Power Source, A Standout Performance

The B300K isn't just an add-on; it's also a versatile power hub. With a USB-A port, it's perfect for keeping your essentials like smartphones, tablets, or fans charged, whether you're ready to make an urgent call or message, eager to share beautiful moments with your friends, or try to stay cool while camping in a tent. Power is always within reach, wherever life takes you.

Specifications

Battery Info

• Battery Capacity: 2,764.8Wh (51.2V, 54Ah)
• Battery Type: LiFePO4 (Lithium Iron Phosphate)
• Life Cycles: 4,000+ Cycles to 80% Original Capacity

Output

• USB-A: 12W Max., 5V / 2.4A

General

• Net Weight: Approx. 29.5kg (65.04lbs)
• Dimensions (L × W × H): 525 × 327 × 209mm (20.67 × 12.87 × 8.23in)
• 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:
  • 60A Max.
  • (Current may decrease outside specified temperatures)
• Discharging Current: 70A Max.
• 2 × Expansion Port: 58.4VDC Max., 90A Max.

In The Box

Warranty Period

• BLUETTI warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
• The warranty period starts on the date of purchase by the original consumer purchaser,  
• For the product of portable power station, the warranty period varies from 24 months to 72 months.
• For the product of home backup system, the warranty period varies from 48 months to 60 months.
• For the product of solar panel and accessories as cable, charger etc, 12 months is provided for the warranty service.
• No warranty for gifts product and Warranty period may vary by country subject to local laws and regulations. 

Warranty Statement 

• Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
• A purchased order number made through BLUETTI official stores.
• Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.

Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.

Exclusions of Warranty

• Misused, abused, damaged by accident or damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.);
• Unauthorised modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
• Use for special application other than normal consumer use;
• Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes;
• Invalid proof of purchase;

Warranty period expired

• The battery model on the warranty certificate does not match the actual item
• Product wear and tear through the usage of time.

Free shipping is by dpd and only for addresses on mainland UK. All BT , Northern Ireland , Northern Scotland , Highlands , Isles postcodes will incur an additional £20.00 charge for delivery.

Additional Postage Payable for Shipping to

• Northern Ireland
• Highlands
• Northern Scotland
• Scottish Isles
• Isle of Man
• Orkney
• Shetland