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SAJ batteries

SAJ has 30 models on the Clean Energy Council approved lists as at 23 Sept 2026: 30 batteries.

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About SAJ

SAJ (Guangzhou Sanjing Electric) was established in 2005 in Guangzhou, China, and makes solar inverters and energy storage systems. Its Australian subsidiary is SAJ Digital Energy Australia Pty Ltd, based in Tullamarine, Victoria.

Headquarters
Guangzhou, China
Founded
2005
Makes
Hybrid and on-grid inverters, home batteries, all-in-one home energy systems

From the company's own published information, checked 7 October 2026: SAJ Australia: About us · SAJ Australia: Locations

SAJ in Australia

Range in Australia
SAJ's Australian site lists the H2 hybrid inverter (3-6K-S, 5-10K-S, 5-10K-T and 10-30K-T models), the B2 low-voltage battery in 5.0 kWh modules scalable to 40 kWh, and the B2S high-voltage battery from 12.8 to 51.2 kWh per stack. Both batteries use lithium iron phosphate (LFP) cells. The HS5 series (EK70 HS5 and EK90 HS5) is an all-in-one home system.
Backup power
SAJ says the HS5 switches to backup power in a blackout and can provide whole-home backup. The H2 inverter has a UPS function. Ask your installer which circuits will be backed up.
Warranty
SAJ's Australian battery warranty for the B2 and B2S series runs 10 years from commissioning or 10 years and 6 months from shipment, whichever is earlier. It guarantees 60% of usable capacity for 10 years, or until a minimum energy throughput is reached, whichever comes first.
Contact in Australia
SAJ Digital Energy Australia Pty Ltd is at 17 Silicon Place, Tullamarine, Victoria. Its listed contacts are 1800 888 725 and info@saj-electric.com.au, plus a service line on +61 2 5501 9998.

From the company's own published information, checked 7 October 2026: SAJ Australia: B2 LV series · SAJ Australia: B2S HV datasheet · SAJ Australia: Battery limited warranty (AU)

SAJ products at a glance

  • 30 current battery models in 5 series, with usable capacity from 4.8 to 77.3 kWh.
  • Warranty stated on the datasheets we hold: 120 months (10 years) from the date of completion of commission; 10-year warranty.

Worked out from the Clean Energy Council approved lists as at 23 Sept 2026 and the manufacturer datasheets we hold. A summary of what's approved, not a recommendation: ask your installer which model suits your home.

SAJ batteries

30 current models · 5 series · manufacturer links for 2

Compare SAJ batteries

  • B2

    B2 specs and approved models

    10 models · 4.8–24 kWh

    B2-5.0-HV1, B2-5.0-HV5, B2-10.0-HV1, B2-10.0-HV5, B2-15.0-HV1, B2-15.0-HV5 and 4 more

    Module capacity:
    5.0kWh
    Scalability:
    Scalable Up to 40kWh
    Chemistry:
    LiFePO4
    Charge/discharge rate:
    1C
    Ingress protection:
    IP65
    Warranty:
    120 months (10 years) from the date of completion of commission

    Product pageChecked 9 Oct 2026

  • B2S

    B2S specs and approved models

    10 models · 12.8–51.2 kWh

    B2-12.8-HV1-S, B2-19.2-HV1-S, B2-19.2-HV2-S, B2-25.6-HV1-S, B2-25.6-HV2-S, B2-32.0-HV1-S and 4 more

    Capacity per stack:
    One Stack= 51.2 kWh Max
    Rated power:
    Up to 25.6kW rated power per stack
    Chemistry:
    LFP (Lithium Iron Phosphate) cells
    Ingress protection:
    IP65
    Cycle life:
    6,000+ cycle life
    Warranty:
    10-year warranty

    Product pageChecked 9 Oct 2026

  • CHS2

    6 models · 51.5–77.3 kWh

    CHS2-29.9K-T4-204.8V/280Ah/51.5kWh, CHS2-50K-T6-204.8V/280Ah/51.5kWh, CHS2-29.9K-T4-256.0V/280Ah/64.4kWh, CHS2-50K-T6-256.0V/280Ah/64.4kWh, CHS2-29.9K-T4-307.2V/280Ah/77.3kWh, CHS2-50K-T6-307.2V/280Ah/77.3kWh

  • EK70 HS5

    2 models · 7–9 kWh

    EK70 BU5-7.0-TV, EK70 BU5-9.0-TV

  • EK90 HS5

    2 models · 7–9 kWh

    EK90 BU5-7.0-TV, EK90 BU5-9.0-TV

Source: Clean Energy Council approved products lists, data as at 23 Sept 2026. Approval means a product meets the standards needed to be installed with government small-scale technology certificates (STCs). It isn't a recommendation, and Energy Quotes doesn't rank products. Check the manufacturer's datasheet and ask your installer before you buy.

Energy Quotes isn't affiliated with SAJ. Listing a brand here doesn't mean participating installers sell it — mention it on the quote form and installers will tell you whether they can supply it.

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