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Residential battery comparison profile

SAJ
AS3 AC-Coupled

A slim AC-coupled 6-in-1 storage system for adding SAJ backup and energy management to an existing solar home.

Research-based opinionConfirmed Australian residential pageChecked 7 August 2026
SAJ brand mark used because a reusable Australian product image is not yet available5–40 kWh
01

Manufacturer-sourced facts

What it is.

These are product facts, not a score or endorsement.

Usable capacity range
5–40 kWh
Module size
5 kWh
Architecture
AC-coupled
Phase support
Single-phase and Three-phase
Backup
Whole-home capable
Warranty
Check the current Australian product warranty
Cell chemistry
LFP
CEC status checked
An Australian product page is live, but an exact current CEC battery listing was not confirmed on 7 August 2026. Confirm eligibility before purchase.
Standout specification
5–40 kWh, integrated 7/11 kW EV charger, backup and energy management in a 17 cm body
02

Our opinion

The buying view.

EDITORIAL OPINION - BASED ON THE CITED RESEARCH
“AS3 is the retrofit-oriented counterpart to HS3. It is attractive where the existing solar inverter is staying, but the exact phase, approval and included balance-of-system hardware need unusually careful checking.”
Best suited to
Existing solar homes wanting an AC-coupled battery, backup, EV charging and EMS ecosystem
What stands out
5–40 kWh, integrated 7/11 kW EV charger, backup and energy management in a 17 cm body
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.

  • Current Australian model and approval details are not sufficiently exposed for the family name alone to establish eligibility.
  • AC coupling preserves an existing solar inverter but adds conversion losses and can make backup design more involved.

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.

SAJ Australia - AS3 AC-coupled systemOpen manufacturer source ↗Clean Energy Council - approved batteriesOpen supporting source ↗CEC series: AS3Search the household-scale approval register →Is something outdated or incorrect?Contact TechManPat with an update →

Evidence check

Last checked

Australian sources
Specifications last checked
7 August 2026
Price last checked
7 August 2026
Australian availability last checked
7 August 2026

What changed

No material change logged.

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