About this document
review.solar’s plain-language summary of the manufacturer’s warranty terms as at the review date. Not a legal instrument: verify current terms with the manufacturer before making a claim.
The guarantee
- Product warranty: 10-year claim
- Capacity retention
- Coverage scope
What voids or limits it
- Detailed exclusions unpublished
How to claim
Confirm the claim channel, regional coverage and enforceable terms with the supplying Deye entity before purchase.. Full summary, conditions and sources: page 2.
Page 2 · Complete warranty summaryDeye SUN-BK250
Warranty period
Product warranty: 10-year claim
Deye's current SUN-BK manual and official-store listing state a 10-year warranty for the exact model. Detailed terms defining commencement, remedies, transferability and regional scope were not located.
Capacity retention
Deye states 6,000 cycles to 70% state of health, but no separate 10-year retained-capacity warranty commitment was located. Do not treat the cycle-life figure as a warranty floor.
What’s covered
Coverage scope
The available product manual and listing state the 10-year period but do not publish exact coverage or remedy clauses.
Exclusions
Detailed exclusions unpublished: No exact SUN-BK250 warranty document was located. Do not infer exclusions from Deye's other inverter or battery products.
Transferability
Unknown because detailed exact-model terms were not located.
How to make a claim
Confirm the claim channel, regional coverage and enforceable terms with the supplying Deye entity before purchase.
Source reference
DocumentDeye SUN-BK Series product manual and official product listing
Version at auditChecked 14 July 2026; detailed warranty terms unavailable
Sourced byreview.solar, 2026-07
review.solar · complete warranty summary · review.solar/warranties/deye-deye-sun-bk250 · © Solar Analytica 2026