SAJ home battery
SAJ B2
The SAJ B2 is a home battery with 10 models on the Clean Energy Council approved list as at 23 Sept 2026, with usable capacity from 4.8 kWh to 24 kWh.
Key specs
- 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
Copied from SAJ's own product page, checked 9 Oct 2026. Figures can differ between models in the range. SAJ product page
Questions to ask installers about the B2
- Which size suits my usage, and is that usable capacity or nominal capacity?
- Which inverter will it run with, and does my existing solar need to change?
- Will it keep power on in a blackout, and which circuits are backed up?
- What does the warranty cover, for how long, and is there a throughput or cycle limit?
- Where will it be installed, and does that location suit its protection rating?
- Can I add capacity later, and can it join a virtual power plant?
Our home battery guide explains each of these, and the battery cost guide covers what affects the price.
Approved B2 models
10 current models
| Model | Usable capacity | Nominal capacity | Approved until |
|---|---|---|---|
| B2-5.0-HV1 | 4.8 kWh | 5 kWh | 31 Dec 2027 |
| B2-5.0-HV5 | 4.8 kWh | 5 kWh | 31 Dec 2027 |
| B2-10.0-HV1 | 9.6 kWh | 10 kWh | 31 Dec 2027 |
| B2-10.0-HV5 | 9.6 kWh | 10 kWh | 31 Dec 2027 |
| B2-15.0-HV1 | 14.4 kWh | 15 kWh | 31 Dec 2027 |
| B2-15.0-HV5 | 14.4 kWh | 15 kWh | 31 Dec 2027 |
| B2-20.0-HV1 | 19.2 kWh | 20 kWh | 31 Dec 2027 |
| B2-20.0-HV5 | 19.2 kWh | 20 kWh | 31 Dec 2027 |
| B2-25.0-HV1 | 24 kWh | 25 kWh | 31 Dec 2027 |
| B2-25.0-HV5 | 24 kWh | 25 kWh | 31 Dec 2027 |
More from SAJ
Before you choose
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 product doesn't mean participating installers sell it. Mention it in the quote form and installers will tell you whether they can supply it.
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