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Residential battery comparison profile

SAJ
B2 HV

A modular high-voltage residential battery designed for SAJ H2 hybrid inverters.

Research-based opinionConfirmed Australian residential pageChecked 28 July 2026
SAJ brand mark used because a reusable Australian product image is not yet available4.8–24 kWh
01

Manufacturer-sourced facts

What it is.

These are product facts, not a score or endorsement.

Usable capacity range
4.8–24 kWh
Module size
4.8 kWh
Architecture
DC-coupled
Phase support
Single-phase and Three-phase
Backup
Backup capable
Warranty
10 years / Australian battery terms apply
Cell chemistry
LFP
CEC status checked
B2 battery configurations are CEC-listed to 31 December 2027 and H2 inverter models are listed to dates extending to 16 April 2029.
Standout specification
4.8–24 kWh CEC-listed usable capacity with current single- and three-phase H2 inverter options
Show 5 model variants

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

  • B2-5.0-HV1
  • B2-10.0-HV1
  • B2-15.0-HV1
  • B2-20.0-HV1
  • B2-25.0-HV1
02

Our opinion

The buying view.

EDITORIAL OPINION - BASED ON THE CITED RESEARCH
“B2 and H2 have a much stronger Australian installation history than the catalogue previously reflected. The useful comparison is the exact H2 model, B2 stack and backup output, not the broad SAJ family name.”
Best suited to
Homes wanting 5 kWh-class steps with a phase-matched SAJ H2 hybrid inverter
What stands out
4.8–24 kWh CEC-listed usable capacity with current single- and three-phase H2 inverter options
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.

  • The battery is tied to a supported hybrid-inverter design; output and backup cannot be inferred from the B2 stack alone.
  • Several HV1 and HV5 model codes share the same capacity, so the exact approved battery and H2 inverter codes must appear on the quote.

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 - B2 high-voltage batteryOpen manufacturer source ↗SAJ Australia - H2 hybrid inverterOpen supporting source ↗SAJ Australia - battery warranty supportOpen supporting source ↗Clean Energy Council - approved batteriesOpen supporting source ↗CEC series: B2, H2Search the household-scale approval register →Is something outdated or incorrect?Contact TechManPat with an update →

Evidence check

Last checked

Australian sources
Specifications last checked
28 July 2026
Price last checked
28 July 2026
Australian availability last checked
28 July 2026

What changed

  • New product: The established 4.8–24 kWh usable B2 family is now compared with current phase-matched H2 inverter options.
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