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Residential battery comparison profile

AlphaESS

AlphaESS
SMILE-G3 4.0S Battery

An Australian-listed LFP battery family with documented SMILE-G3 inverter pairings.

Research-based opinionAustralian product range confirmedChecked 13 November 2026
AlphaESS brand mark used because a reusable Australian product image is not yet available3.8 kWh
01

Manufacturer-sourced facts

What it is.

These are product facts, not a score or endorsement.

Usable capacity range
3.8 kWh
Published output
4 kW rated battery-side DC
Module size
3.8 kWh
Published total energy per module
4 kWh
Architecture
Integrated
Phase support
Single-phase
Backup
Backup capable
Warranty
5-year product warranty and 10-year battery performance warranty, subject to terms.
Cell chemistry
LFP
CEC status checked
Exact battery configurations CEC-listed through 2027-04-22.
Standout specification
3.8 kWh usable in the listed single-module configuration.
Show 1 model variant

These model names sit inside the family above. Capacity, phase and output still need to match the installed configuration.

  • SMILE-G3-BAT-4.0S
02

Our opinion

The buying view.

EDITORIAL OPINION - BASED ON THE CITED RESEARCH
“Compare the exact inverter, usable capacity and backup design on the installer quote.”
Best suited to
A small single-phase system with the 3.68 kW S3.6 hybrid inverter.
What stands out
3.8 kWh usable in the listed single-module configuration.
03

Cons and watch-outs

What to check before buying.

These are configuration trade-offs and questions to verify, not claims that the product is defective.

  • Confirm installed pricing and backup circuit coverage.
  • The exact inverter and battery configuration determine available power.

Ask for these points to be answered against the exact model numbers and installed configuration in your quote.

04

Evidence trail

Check the sources.

Specifications can change by model revision, region and paired hardware. CEC approval is not proof of current availability or suitability. Confirm the model and final design with the manufacturer and an accredited Australian installer.

AlphaESS Australia - exact system documentationOpen manufacturer source ↗AlphaESS - single-phase installation manualOpen supporting source ↗Clean Energy Council - approved batteriesOpen supporting source ↗CEC series: SMILESearch the household-scale approval register →Is something outdated or incorrect?Contact TechManPat with an update →

Evidence check

Last checked

Australian sources
Specifications last checked
13 November 2026
Price last checked
No separate price check recorded
Australian availability last checked
13 November 2026

What changed

No material change logged.

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