BLUETTI B300K Expansion Battery 2,764.8Wh LiFePO4
- Regular price
- $1,431.00
- Sale price
- $1,431.00
- Regular price
-
$1,736.00
Prepaid return label, no restocking fee. Details
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Choose your version. Bluetti sells the B300K in three versions, one for each host power station: Apex 300, AC200L / AC300 and AC500. Each has its own Bluetti part number and price, so pick the one that matches your station in the Compatible with menu.
The B300K adds 2,764.8Wh of LiFePO₄ storage to a compatible BLUETTI power station. It is built with automotive-grade cells and an integrated BMS for frequent cycling, and it works across five BLUETTI platforms — Apex 300, AC200L, AC200MAX, AC300 and AC500 — subject to the correct connection cable. Worth knowing before you buy: this is an expansion battery, not a power station. On its own it can only supply power through its built-in 12W USB-A port; household AC output requires a compatible station.
Specifications
- Capacity: 2,764.8Wh nominal LiFePO₄
- Cycle life: 6,000+ cycles to 80% of original capacity
- Weight: 65.04 lb
- Compatible with: Apex 300, AC200L, AC200MAX, AC300, AC500 (cable varies by model)
- Expansion: up to six per Apex 300 via CA90 connection
- Standalone output: 12W USB-A port only
- Fast charging: 80% in as little as 45 minutes in a supported AC300/AC500 configuration
- Warranty: 3+1 years with registration
BLUETTI part number: B300K2-UN-GY-BL-SPFUS-00
Genuine BLUETTI, shipped direct from BLUETTI’s US warehouse. Free shipping, no minimum. Backed by the manufacturer’s warranty. Sold by RV Parts Giant alongside our RV electrical and solar parts.
Eligible unused and uninstalled physical products may be returned
within 30 days after delivery.
Regular sale and discounted products are eligible for return.
Only products clearly marked “Final Sale” before purchase are
non-returnable.
Conditions and exclusions apply. See our Return and Refund Policy.
Free standard shipping is available on eligible physical-product orders delivered within the contiguous United States, with no minimum order amount.
Black Series generic replacement parts and products or orders that are oversized, require freight shipping, are special-order, contain hazardous materials, or are delivered to remote or limited-access areas are excluded. Any applicable shipping charge will be displayed at checkout before you submit your order.
In-stock products are generally processed within 1–2 business days. Estimated delivery is approximately 4–12 business days, depending on the product, destination, carrier, and delivery method.
Alaska, Hawaii, U.S. territories, and international destinations are not included in the contiguous United States free-shipping offer. See our Shipping Policy for complete details.
Buying a system, not just a part?
At this size the right answer depends on your rig, your loads and how you camp. Tell us what you are trying to run and we will price the whole build before you order - cable, fusing and all - or confirm this is the right part for the job.
Talk to a power specialist - (833) 822-6737 Book a consultation · Size it yourself · Pay over time