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Protection that lasts.

Coverage varies by product. Register at handover to activate the full period — and extend it when you need longer peace of mind.

Coverage by product

Warranty coverage by product
ProductStandardExtendableNotes
Residential batteries10 yearsup to 15 yearsOr a throughput / cycle limit, whichever comes first.
C&I / utility storage10 yearsup to 20 yearsProject-based; capacity-retention guarantee available.
Inverters5 yearsup to 10 yearsExtension available at registration or purchase.
PV modules12 years (product)25-year performanceLinear power-output warranty.
EV chargers3 yearsup to 5 yearsCovers parts and manufacturing defects.

Indicative coverage — the binding terms are set out in the warranty document and apply per region.

Registering your warranty

01 — Register at handover

Register in the BestSolar app or via your installer when the system is commissioned.

02 — Keep your records

Retain your purchase invoice and system ID — they may be required for a claim.

03 — Extend if needed

Add an extension at registration or purchase to lengthen the coverage period.

Request the warranty document