Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
MPN No: B500K
Expected ship date Jan 11 - 14
In Stock
1,899.00
-5%
$1,799.00
Sale
Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
Regular price
$1,899.00
-5%
$1,799
5% OFF
New
LESS THAN 50
Sale
Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
Available
MPN No: B500K
Regular price
$1,899.00
-5%
$1,799
Expected ship date Jan 11 - 14
We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Installation Guide
Regular price
$1,899.00
-5%
$1,799
Bluetti B500K Expansion Battery (for Apex300) | 5,120Wh
MPN No:
B500K
Expected ship date Jan 11 - 14
Sale
BLUETTI B500K Expansion Battery (for Apex 300) | 5,120Wh
Weight: 99.2lbs
Dimensions: 20.47 × 12.87 × 12.15 in
Expand your energy system with the BLUETTI B500K Expansion Battery, a high-capacity LiFePO₄ battery designed to dramatically increase the runtime and scalability of the Apex 300 ecosystem. With 5,120Wh of usable energy and long-life chemistry, the B500K is built for serious backup power, off-grid living, and modular system growth.
Key Technology
-
5,120Wh High-Capacity Storage
Adds a substantial 5.12kWh of energy per unit, allowing longer runtimes for essential loads, appliances, and tools. -
LiFePO₄ Battery Chemistry
Lithium Iron Phosphate cells provide enhanced safety, thermal stability, and a long service life with thousands of charge cycles. -
Modular, Stackable Design
Built to scale—add batteries over time as your power needs grow, without replacing your existing system. -
Intelligent Battery Management System (BMS)
Integrated protections against over-charge, over-discharge, over-current, and temperature extremes help ensure safe, reliable operation.
Best Uses
-
Home Backup Power
Extend backup duration during outages when paired with the Apex 300. -
Off-Grid & Remote Power
Ideal for cabins, workshops, and remote properties that need reliable, expandable energy storage. -
RV, Van, and Mobile Power Systems
Increase capacity for extended stays off-grid without running generators. -
System Expansion Over Time
Perfect for users who want to start with a core power station and add storage as energy demands increase.
Compatibility
The B500K Expansion Battery is designed specifically for use within the BLUETTI ecosystem and is optimized for:
-
Apex 300 (primary host system)
-
Compatible BLUETTI expansion architecture and connection cables
Note: Expansion batteries do not operate independently and must be connected to a compatible BLUETTI power station.
Warranty
-
Manufacturer Warranty: 4 years
-
Backed by BLUETTI’s long-term support and service network for peace of mind on large energy investments.
Product Specifications
| Specification | Details |
|---|---|
| Model | BLUETTI B500K |
| Battery Capacity | 5,120Wh (5.12kWh) |
| Battery Chemistry | Lithium Iron Phosphate (LiFePO₄) |
| Cycle Life | 4,000+ cycles to 80% capacity |
| System Type | Expansion battery (not standalone) |
| Compatibility | BLUETTI Apex 300 |
| Scalability | Supports multi-battery configurations |
| Battery Management | Integrated BMS protection |
| Warranty | 4 years |
Built to Scale, Built to Last
The BLUETTI B500K Expansion Battery is a future-ready storage solution for users who need more than short-term power. Whether you’re preparing for outages, building an off-grid system, or expanding an existing Apex 300 setup, the B500K delivers dependable capacity and long-term performance without compromise.
What is the difference between the B300K and B500K Expansion Battery?
| Specification | BLUETTI B300K | BLUETTI B500K |
|---|---|---|
| Capacity (Usable) | ~3,072 Wh | ~5,120 Wh |
| Battery Chemistry | LiFePO₄ (Lithium Iron Phosphate) | LiFePO₄ (Lithium Iron Phosphate) |
| Cycle Life | ~4,000+ cycles (to 80% SOH) | ~4,000+ cycles (to 80% SOH) |
| Nominal Voltage | Comparable across both systems | Comparable across both systems |
| Scalability | Supports multi-battery expansion | Supports multi-battery expansion |
| Best For | Moderate energy expansion | Larger energy expansion needs |
| Typical Use Cases | Extended runtimes for essentials | Long runtimes, larger loads, or full backup |
| Compatibility | Apex Series and compatible BLUETTI hosts | Apex Series and compatible BLUETTI hosts |
| Physical Size / Weight | Smaller / lighter than B500K | Larger / heavier (more capacity) |
| Value Proposition | Better entry-level expansion |
Higher capacity per unit (fewer units needed) |
FAQ
Shipping costs at US Solar Supplier are calculated based on the weight and dimensions of the product(s) in your order. The company utilizes FedEx or UPS for ground shipments and trusted freight carriers for larger shipments. All shipments are insured for customer protection.
For standard delivery, most orders will arrive at their destination within 7 to 10 business days. Please note that these estimates can change depending on the carrier's operational capabilities and other uncontrollable factors.
It is essential to meticulously inspect your shipment upon delivery. If any damage or issues are found, note them on the Bill of Lading (BOL) or the delivery receipt. Major visible damage should result in the rejection of the delivery. Any damages must be reported to US Solar Supplier by email within 24 hours of delivery, including the signed BOL and any supporting documents or photos.
US Solar Supplier offers only the best Tier 1 product offerings and high-quality solar equipment. You can design your solar project using the solar design tool, tailored to fit your needs. If you have specific preferences or deadlines, include this information in the order notes or contact the sales department before placing your order. US Solar Supplier is committed to empowering you with the tools and support needed to ensure your project's success.
US Solar Supplier offers a range of finance solutions through its partners, including Power Purchase Agreements, Leases, and Loans. Additionally, their consultative approach can help you take advantage of PACE financing for commercial projects. The team at US Solar Supplier is ready to assist in finding the right finance solution to make your solar project a reality.
