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BLUETTI B300 Expansion Battery product image
Batteries & storage

B300 Expansion Battery

BLUETTI

BLUETTI B300 is a 3,072Wh LiFePO4 expansion battery with a built-in 200W MPPT input and standalone DC outputs.

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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.

Capacity3,072Wh (51.2V / 60Ah)
ChemistryLiFePO4
Life cycles3,500+ to 80%
Solar input200W max
AC input500W max
USB-C output100W max
USB-A output18W max
12V outlet12V / 10A
Weight36.1 kg
Best for

Where it fits.

Existing AC300/AC200MAX-class BLUETTI systems needing a 3.07kWh modular battery and documented expansion support.

Watch for

Limits to check.

The U.S. manufacturer listing may show discontinued or temporary out-of-stock status. Verify current availability and required cables.

Compatibility

System fit.

BLUETTI AC300; AC200MAX; AC200P where supported by the manufacturer connection arrangement

Warranty

Coverage note.

48-month warranty shown in BLUETTI technical information for the B300 listing.

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

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Related BLUETTI equipment

More models in this equipment family.

Compare nearby models before deciding which specification level actually fits the job.

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: 2026-09-01

Market note: United States legacy/current archive listing

Official product: Open manufacturer page ↗