← ScorecardSourced values
review.solar · Warranty summary
Smile G3 S5
8.2–60.5 kWh · LFP · All-in-one
AlphaESS
10-year product warrantyGlobal
Reviewed 2026-06 · Document v1.0
78/100
Excellent
Guarantee & backbone
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.
10yr
Warranty period
70%
Capacity at end of term
10,000cycles
Cycle life
Parts + labour
Coverage

Capacity guarantee: minimum retained at year 10

60708090100Rated capacity 100%Guaranteed floor 70.0%70.0%0yr2yr4yr6yr8yr10yr
Rated capacity (reference)Guaranteed floor: 70.0% at yr 10

No year-by-year capacity schedule is published for this product - the manufacturer guarantees only this end-of-term minimum, not a specific decline curve.

The guarantee
  • Product warranty: 10 years
  • Capacity retention guarantee: 70% after 10 years
  • Defects in materials and workmanship
  • Battery module replacement
What voids or limits it
  • Labour and reinstallation costs
  • Damage from improper installation or operation
  • Capacity loss from atypical use
  • Cosmetic damage and consumables
  • Force majeure and external events
  • Non-authorised modifications
How to claim
Lodge claims through an AlphaESS authorised installer or distributor: in Australia, typically via the local distributor: with proof of purchase, commissioning date, system serial number, and a fault d Full summary, conditions and sources: page 2.
review.solar
Evidence-first solar benchmark · complete summary on page 2
review.solar/warranties/alpha-ess-co-ltd-alphaess-smile-g3-modular-lfp-residential-e
© Solar Analytica 2026
Page 2 · Complete warranty summaryAlphaESS SMILE-G3
Warranty period
Product warranty: 10 years
AlphaESS warrants the SMILE-G3 against defects in materials and workmanship for ten years from commissioning, repairing or replacing defective units or components at its discretion. The warranty period does not reset on replacement of a defective component.
Capacity retention guarantee: 70% after 10 years
AlphaESS guarantees the SMILE-G3 retains at least 70% of rated usable capacity at end of the ten-year term under normal operating conditions, typically expressed as a linear degradation schedule with prorated intermediate targets. Capacity claims must be demonstrated under the warranty document's specified test conditions; loss caused by misuse, operation outside specified temperature ranges, or non-compliant installation is excluded.
What’s covered
Defects in materials and workmanship
Covers manufacturing defects, component failures, and faults in the battery modules, Battery Management System (BMS), and enclosure under normal residential use. Remedy at AlphaESS's election: on-site repair or a replacement unit or module of equivalent specification.
Battery module replacement
The modular architecture allows individual battery modules to be replaced rather than the whole unit. For a confirmed capacity retention failure, AlphaESS replaces the minimum number of modules needed to restore warranted capacity, subject to compatible module availability at the time of claim.
Exclusions
Labour and reinstallation costs: Removal, reinstallation, and third-party on-site labour costs are not covered; they rest with the system owner or their installer.
Damage from improper installation or operation: Excludes damage from installation not performed by a qualified electrician per AS/NZS 3000, AS/NZS 5139, and AlphaESS instructions, or from operation outside specified voltage, temperature, and charge/discharge parameters.
Capacity loss from atypical use: Excludes capacity loss from ambient temperatures outside the specified range, deep cycling beyond recommended depth of discharge, or commercial and non-residential use.
Cosmetic damage and consumables: Excluded: scratches, dents, discolouration, normal enclosure wear, and consumables (fuses, contactors) worn through normal operation: unless failure stems from a manufacturing defect.
Force majeure and external events: Damage from lightning, flood, fire, grid power surges, acts of God, or other events beyond the manufacturer's control is excluded.
Non-authorised modifications: Any modification, repair, or firmware update performed by a party not authorised by AlphaESS will void the warranty in its entirety.
Transferability
Generally not transferable: the warranty is issued to the original purchaser and tied to the original installation site. Buyers of a property with an existing SMILE-G3 should confirm transferability with AlphaESS or its authorised distributor at purchase.
How to make a claim
Lodge claims through an AlphaESS authorised installer or distributor: in Australia, typically via the local distributor: with proof of purchase, commissioning date, system serial number, and a fault description. AlphaESS or its authorised service agent assesses whether repair or replacement is warranted; response times vary with parts availability and installation location.
Source reference
DocumentAlphaESS SMILE-G3 Product Warranty
Version at auditCurrent (as at 2026-06)
Sourced byreview.solar, 2026-06
Manufactureralpha-ess.com

review.solar · complete warranty summary · review.solar/warranties/alpha-ess-co-ltd-alphaess-smile-g3-modular-lfp-residential-e · © Solar Analytica 2026