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BLUETTI B500K Expansion Battery product image
Batteries & storage

B500K Expansion Battery

BLUETTI

BLUETTI B500K is a 5,120Wh LiFePO4 expansion battery for current BLUETTI home-backup and portable-power platforms, with more than 4,000 rated cycles.

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Model details

Key information for this model.

Use the verified specifications below as a research starting point, then confirm the exact regional version on the manufacturer page before buying.

Capacity5,120Wh
ChemistryLiFePO4
Cycle life4,000+ cycles
System expansionUp to 100kWh in supported configurations
Supported platformsApex 300, AC300, AC500, AC200L, AC200MAX
InstallationFloor, trolley or supported fixed mounting
Best for

Where it fits.

BLUETTI users who need a large modular 5.12kWh expansion battery for Apex 300, AC300, AC500, AC200L or AC200MAX systems.

Watch for

Limits to check.

Cable and host-system requirements differ by BLUETTI platform. The verified U.S. affiliate offer is the single B500K configuration for Apex 300 and includes its compatible connection cable.

Compatibility

System fit.

BLUETTI lists Apex 300, AC300, AC500, AC200L and AC200MAX compatibility. Use the cable/variant specified for the exact host system; the linked U.S. offer is the Apex 300 configuration.

Warranty

Coverage note.

BLUETTI manufacturer warranty applies; the current product page also offers registration for extended coverage. Verify current terms at purchase.

Next checks

Useful next steps for this model.

Move from model research into comparison, load planning and local installation help without starting again.

01

Official product information

Confirm the current regional model, specifications, included accessories and availability with the manufacturer.

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02

Compare alternatives

Put this model beside nearby options and compare capacity, power, charging, compatibility and other relevant differences.

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03

Estimate the storage you need.

Use the most relevant Melnti calculator to connect the product specification to the load or system requirement.

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04

Local help

For installed equipment, search service coverage by city or town and request a project connection through Melnti.

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Related BLUETTI equipment

More models in this equipment family.

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Source & buying note

Confirm the exact regional model before buying.

Manufacturer pages, regional SKUs and specifications can change. Use the source links below to confirm the exact model and local version before placing an order.

Information checked: 2026-09-03

Market note: United States / regional offers mapped separately

Official product: Open manufacturer page ↗