Expansion batteryBLUETTI
B300K Expansion Battery
Expands a compatible BLUETTI system without replacing the main power station.
Plain answer
What does it add?
Large home-backup and long-runtime setups built around compatible BLUETTI stations.
The same brand is not enough: cable type and permitted battery count depend on the host station.Four checks. No guesswork.
Exact system
BLUETTI AC200L and AC200MAX · BLUETTI AC300 and AC500 · BLUETTI Apex 300
Connection path
Uses the specified BLUETTI battery expansion cable; the required cable can differ by host station.
Country version
Check the local product page, cable bundle, warranty and freight restrictions.
Installation
User-connectable only in a combination shown in the official compatibility table or manual.
Official source checked 2026-08-23
Open BLUETTI B300K product page ↗Verify the exact model one last time.
Product revisions and compatible combinations can change. The manufacturer manual and the label on the delivered regional unit override this summary.