AlphaESS SMILE-G3

Name: AlphaESS SMILE-G3
Brand: AlphaESS
Author: JouleSpecs

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Data from official source

Sheet curated by JouleSpecs — We check every spec sheet against the manufacturer's own documentation: each value carries its source and the date we read it. Published Oct. 20, 2026 · Last updated Oct. 21, 2026

AlphaESS SMILE-G3 is a single-phase residential energy storage system with LiFePO₄ cells, available as a hybrid version or with an AC-coupled inverter. The storage is built from battery modules of 3.8, 8.2 or 10.1 kWh with a 95% depth of discharge. Capacity grows by adding modules: 1 to 4 in series for the 3.8 kWh module, 1 to 6 in parallel for the 8.2 and 10.1 kWh ones. The warranty is 5 years on the product and 10 years on battery performance.

01 · Verified data

Technical specifications

Cell chemistry LFP (lithium iron phosphate)

Parameter	Value	Source
Depth of discharge	95 %	Compiled by editorial team
Cell chemistry	LFP (lithium iron phosphate)	Compiled by editorial team
Expandable	Yes	Compiled by editorial team
Maximum expanded capacity	60.5 kWh	Compiled by editorial team
Continuous output	5000 W	Compiled by editorial team
Phases	Single-phase	Compiled by editorial team

03 · Summary

Pros and cons

In favour

The system uses LiFePO₄ cells.
Capacity grows by adding modules of 3.8, 8.2 or 10.1 kWh.
The warranty is 5 years on the product and 10 years on battery performance. source