BLUETTI 2x B300K Expansion Battery Bundle for Apex 300 5,529.6Wh
- Regular price
- $1,981.27
- Sale price
- $1,981.27
- Regular price
-
$3,198.00
Protect your purchase
Breakdowns and accidental damage, no deductible. What's covered
- Breakdowns from normal use for the whole term, even after the factory warranty ends
- Drops, spills and cracks from everyday handling
- Batteries that won't charge, hold a charge or fall below 70% capacity
- Repair, replacement or reimbursement. Cancel within 30 days for a full refund
Prepaid return label, no restocking fee. Details
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Two B300K expansion batteries in the Apex 300 configuration. Each is 2,764.8Wh of LiFePO4 storage; Bluetti lists the pair at 5,529.6Wh.
This is the add-on for an Apex 300 owner who bought the station alone and now wants a few nights of fridge, furnace and lights without a generator, or a longer outage covered at home. Bluetti says the B300K integrates with the Apex 300 and the system can be expanded up to 100kWh; it also lists the AC200L, AC200MAX, AC300 and AC500 as compatible, with a 33,168Wh maximum on AC300 or AC500. Each battery carries a USB-A port. Bluetti's page quotes cycle life as 4,000+ in one place and 6,000+ in another.
Specifications
- Battery: B300K expansion battery, two supplied, for Apex 300
- Capacity per battery: 2,764.8Wh
- Bundle capacity (Bluetti figure): 5,529.6Wh
- Battery chemistry: LiFePO4
- Cycle life: Bluetti's page states 4,000+ in one place and 6,000+ in another
- Compatible stations: Apex 300, AC200L, AC200MAX, AC300, AC500
- Maximum capacity: up to 33,168Wh with AC300 or AC500; up to 100kWh with Apex 300
- Extra port: USB-A output for standalone use
- Bluetti part number: B300K2-2-03-SPFUS-00
This is genuine BLUETTI gear shipped from Upland in 3–7 days. RV Parts Giant sells it alongside our RV electrical and solar parts.
Shop the full BLUETTI range at RV Parts Giant.
What it fits
- In the kit: two B300K expansion batteries, 2,764.8Wh each, in the Apex 300 configuration. Bluetti lists the pair at 5,529.6Wh.
- Fits: Bluetti says the B300K integrates with the Apex 300 and the system can be expanded up to 100kWh; it also lists the AC200L, AC200MAX, AC300 and AC500, with a 33,168Wh maximum on AC300 or AC500.
- Good to know: each battery carries a USB-A port. Also listed: the AC200L and AC300 configuration and a three-pack.
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.
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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 - 1-844-GIANT-44 (844-426-8344) Book a consultation · Size it yourself · Pay over time