3 of 30 years, the best documented for a solar panel (printed by the maker): AIKO Neostar 3S+54 AIKO-A480-MCE54Db 480W Dual-Glass Module
Printed as a limited warranty "for 36 months from the date of purchase".
Official user manual: Jackery SolarSaga 100 Mini User Guide (JAK-UM-V1.0) (November 3, 2026 capture) Rev JAK-UM-V1.0 · Checked · Earlier document