





Bluetti B300K Expansion Battery for Apex300 | 2764.8Wh
Bluetti B300K Expansion Battery for Apex300 | 2764.8Wh
Description
- 2,764.8Wh Capacity with 6,000+ 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 Apex300 power stations.
- Maximize Your Power: Expand up to a massive 58kWh when connected with Apex300 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 B300, and B300S models for a customized energy solution that ensures you're never caught without power, no matter where you are.
*Need P150D to P090D cable to connect the AC500.

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 B300 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.
* A 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.

Product Specifications
Bluetti B300K Expansion Battery for Apex300 | 2764.8Wh Product Specifications


Product Manual
BLUETTI 300K Expansion Battery Product Manual
Product Warranty
Warranty
This warranty gives you specific legal rights, and you may have other rights that vary from state to state (or by country or province). Other than as permitted by law, BLUETTI does not exclude, limit or suspend other rights you may have, including those that may arise from the nonconformity of a sales contract. For a full understanding of your rights you should consult the laws of your country, province or state.
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.
Exclusions
BLUETTI warranty policy does not apply to:
- Misused/abused/damaged by accident/damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.)
- Unauthorized modification/repair/dis-assembly or operation not in accordance with the official instructions or manuals
- Items purchased from unauthorized resellers
- Used for special application other than normal consumer use
- Lost/stolen/free/refunded product
- Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes
Product FAQs
Q1. How to claim warranty
A1.
A: Once you receive your product, please register to claim your warranty on our website.
Q2. Why doesn't the B300K drain all its power?
A2. The B300K retains a portion of its energy to prevent overdischarging, which helps protect the battery's lifespan and ensures long-term performance.
Q3. Can I leave the battery uncharged after fully charging?
A3. No, it's important to recharge the B300K in time before the SoC drops to 1% to avoid potential damage. Additionally, ensure it's placed in an environment of at least 10°C (50°F) for at least 12 hours before recharging.
Q4. Which BLUETTI power stations can work with B300K?
A4. B300K is compatible with AC200L, AC200MAX, AC300, and AC500. When connecting to AC500, the P090D to P150D cable is required for connecting with AC500 and sold separately.
Q5. Can I use the B300K alone?
A5. Yes. B300K is a standalone power source with a 12W USB-A port.
Note: The B300K can only be charged by connecting to the AC500/AC300/AC200L/AC200MAX
Q6. Does the B300K support power bank mode?
A6. No
Original: $1,249.00
-65%$1,249.00
$437.15Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Bluetti B300K Expansion Battery for Apex300 | 2764.8Wh
Description
- 2,764.8Wh Capacity with 6,000+ 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 Apex300 power stations.
- Maximize Your Power: Expand up to a massive 58kWh when connected with Apex300 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 B300, and B300S models for a customized energy solution that ensures you're never caught without power, no matter where you are.
*Need P150D to P090D cable to connect the AC500.

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 B300 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.
* A 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.

Product Specifications
Bluetti B300K Expansion Battery for Apex300 | 2764.8Wh Product Specifications


Product Manual
BLUETTI 300K Expansion Battery Product Manual
Product Warranty
Warranty
This warranty gives you specific legal rights, and you may have other rights that vary from state to state (or by country or province). Other than as permitted by law, BLUETTI does not exclude, limit or suspend other rights you may have, including those that may arise from the nonconformity of a sales contract. For a full understanding of your rights you should consult the laws of your country, province or state.
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.
Exclusions
BLUETTI warranty policy does not apply to:
- Misused/abused/damaged by accident/damaged due to force majeure (e.g. lightning strikes, tornadoes, hurricanes, etc.)
- Unauthorized modification/repair/dis-assembly or operation not in accordance with the official instructions or manuals
- Items purchased from unauthorized resellers
- Used for special application other than normal consumer use
- Lost/stolen/free/refunded product
- Any defect or damage caused by exposure to excessive heat, cold, liquids or other external causes
Product FAQs
Q1. How to claim warranty
A1.
A: Once you receive your product, please register to claim your warranty on our website.
Q2. Why doesn't the B300K drain all its power?
A2. The B300K retains a portion of its energy to prevent overdischarging, which helps protect the battery's lifespan and ensures long-term performance.
Q3. Can I leave the battery uncharged after fully charging?
A3. No, it's important to recharge the B300K in time before the SoC drops to 1% to avoid potential damage. Additionally, ensure it's placed in an environment of at least 10°C (50°F) for at least 12 hours before recharging.
Q4. Which BLUETTI power stations can work with B300K?
A4. B300K is compatible with AC200L, AC200MAX, AC300, and AC500. When connecting to AC500, the P090D to P150D cable is required for connecting with AC500 and sold separately.
Q5. Can I use the B300K alone?
A5. Yes. B300K is a standalone power source with a 12W USB-A port.
Note: The B300K can only be charged by connecting to the AC500/AC300/AC200L/AC200MAX
Q6. Does the B300K support power bank mode?
A6. No


















