Bluetti B300K Expansion Battery | 2,764.8Wh
In Stock & Ready to Ship
All orders are shipped within 1-2 business days. Product ETA 7-14 business days.
- 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 33,177.6Wh 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 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.
Specifications
BATTERY INFO
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Model
B300K
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Battery Capacity
2,764.8Wh (51.2V, 54Ah)
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Battery Type
LiFePO₄ (Lithium Iron Phosphate)
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Life Cycles
4,000+ (80%)
OUTPUT
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USB-A Port
12W Max., 5V / 2.4A
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Capacity
2,764.8Wh
GENERAL
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Weight
29.5kg (65.04lbs)
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Dimensions (L × W × H)
52.5 × 32.7 × 20.9cm (0.67 × 12.87 × 8.23in)
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Charging Temperature
0°C to 40°C (32°F to 104°F)
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Discharging Temperature
-20°C to 40°C (-4°F to 104°F)
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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)
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Working Humidity
5% to 95%RH
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Charging Current
60A Max. (Current may decrease outside specified temperatures)
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Discharging Current
70A Max.
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2 × Expansion Port
58.4VDC Max., 90A Max.
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Warranty
3+1 Years
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Compatibility
AC200L, AC200MAX, AC300, AC500
In the box:
- B300K Expansion Battery
- Battery Expansion Cable (P090A)
- User Manual
Shipping Policy
Free shipping on all orders
How long does it take for delivery?
5-7 working days（Except for pre-sale products） .
Which countries do you ship to?
Only the United States, other countries need to place orders on our other websites.
We cannot provide the following services.
1. Alaska
2. Hawaii
3. PR
4. VI
How will my delivery be shipped?
UPS, FEDEX are our logistics partners, shipping Build The Power products.
I ordered more than one item. Will they all be delivered at the same time?
We try to make sure all your items reach you at the same time. Sometimes our products are not always sent together since different shipping options can be used, depending on the product. Once an item has been shipped, you will receive a shipment notification email.
Can I change the delivery address of my package after it has been shipped out?
Unfortunately, we cannot change the shipment once the product is en route.
What do I need to do when I received a different product than what I ordered?
Please contact customer support at sales@buildthepower.com
Return & Refund Policy
Build The Power is obligated to provide the return service to all customers. The return service is currently available to the country of purchase.
If the item is purchased from the Build The Power official store, the authority to request return or refund is permitted.
If the item is purchased from distributors of Build The Power, may follow the distributor policies. Please contact your distributor for further information.
Return and refund policies may vary according to local laws and regulations.
Order Cancellation
Customers can request an order cancellation within 48 hours after placing an order by email or phone with the Build The Power official store.
However, if the product has already been shipped, a 25USD intercept fee will be charged.
Please note that a transaction fee may be charged based on the payment channels after the product has been shipped.
Lost / Damaged Products Received
- If the product was not delivered or lost, please immediately contact us.
- If the product you received was damaged, or if you receive an incorrect or incomplete product, please immediately contact us with proof of videos and/or pictures.
30-Days Money-Back Guarantee
- Within 30 days of the purchase, if you are unsatisfied without quality issues, you have the authorization to refund after return the items complete, unused and in the original package. However, you are responsible for the double shipping cost with two options below:
- RMA provided by Build The Power Customer Service
Once the item is received at Build The Power warehouse and the validity is confirmed, the shipping cost for return will be deducted from the refund.
2. Self-paid Return
Please contact Build The Power Customer Service to get return details.
- If 30 days have passed since the purchase, full refund cannot be offered.
- Double shipping fee will be deducted from the original payment if you reject the shipments.
NOTE: For products that have been used, we reserve the rights to refuse the return.
Return Process
- Please contact Build The Power Service for assistance to proceed the return process with proof of purchase provided and merchandise authorization (RMA) number for return.
- Please follow the instructions guided by Build The Power service on how to properly pack and return the product safely.
Refund
- For Non-quality issues, refund is provided following the “30 Days Money-Back Guarantee ”.
- For quality issues, partial refund may be provided according to the usage time of the device after 30 days of the purchase.
- Refund will be processed within 14 business days after the product is returned to Build The Power warehouse with a refund notification to customer email
Note: Please contact us if the refund is not received within 14 business days.
Contact us:
Email: sales@buildthepower.com
* Build The Power may reserve the right for the modify and final explanation.
Warranty Policy
Warranty Period
Build The Power 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 Build The Power 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.);
- Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
- Purchased from unauthorized resellers;
- Use for special application other than normal consumer use;
- Lost, stolen or full refunded product;
- 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;
- Unauthorized alteration on the warranty certificate;
- Product wear and tear through the usage of time.
Return and Refund
- Order Cancellation:
Order Cancellation can be requested by customer within 48 hours after placing an order by email or phone with the Build The Power official store.
If the product has been shipped, an intercept fee will be charged.
- 30 days money-back guarantee will be automatically credited to your order.
Claim Process
- Please contact us via Email: sales@buildthepower.com, Monday through Sunday, for any assistance with the product.
- For any warranty claims, service performed by Build The Power or local authorized service partner, subject to the options below:
- Repaired by Build The Power service center, or
- Swap for a replacement product with equivalent specifications according to model and service life
- In case of replacement, a refurbished model of equal value may be provided and the delivery of the replacement will be arranged within 7 business days (subject to changes caused by force majeure) after confirming the defective item has been received at Build The Power warehouse.
- A swap product assumes the remaining warranty of the original product or thirty (30) days from the date of replacement, whichever is greater.
- For any out of warranty claims, please priorly contact BLUETTI Service for more details.
Warranty Extension
- The warranty extension is now only applicable for the model of AC200MAX, AC200P or B230 purchased from Build The Power official website with protection against damage without service fee.
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Any purchases of the four models from other platforms are required to submit the application for extended warranty.
Disclaimer of Implied Warranties
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of fitness for a particular purpose or use and any implied warranty of merchantability otherwise applicable to Build The Power portable solar generators. Build The Power and its affiliated companies shall not be liable for any special, incidental or consequential damages, including lost profits. There are no warranties extended other than as provided herein.
This limited warranty may be modified only by Build The Power. Any implied warranties allowed by law shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights. You also have other rights from state to state. Build The Power’s only liability shall be the repair or replacement as stated above.
If you have any further questions, please send an e-mail to sales@buildthepower.com
