SMILE-G3 pairs an AlphaESS hybrid inverter with battery modules of 3.8 to 10.1 kWh. With the larger modules in parallel, the B5 system reaches 60.5 kWh.
Key facts
| Feature | Detail |
|---|---|
| Battery modules | 3.8, 4.0, 8.2 and 10.1 kWh nominal (3.6 to 9.6 kWh usable) |
| Capacity | Up to 60.5 kWh (SMILE-G3-B5 with six 10.1 kWh modules) |
| Depth of discharge | 95% |
| Backup | UPS-level backup |
| Chemistry | Lithium iron phosphate (LFP) |
| Warranty | 10 years product, 10 years battery performance (2024 datasheet) |
Models
| Model | Capacity | Power | Notes |
|---|---|---|---|
| SMILE-G3-S3.6 | 3.8 to 15.3 kWh | - | Modules in series |
| SMILE-G3-S5 | 4.0 to 16.0 kWh | - | Modules in series |
| SMILE-G3-B5 | 8.2 to 60.5 kWh | - | Modules in parallel |
Warranty
AlphaESS’s 2024 SMILE-G3 datasheet lists a 10-year product warranty and a 10-year battery performance warranty. Earlier Australian datasheets listed 5 years on the product, so check the terms on your quote.
Support in Australia
AlphaESS has published Australian datasheets for the SMILE-G3 range.
Strengths
- Scales to 60.5 kWh
- Inverter and battery from one maker
- UPS-level backup
Watch for
- Warranty terms have changed between datasheet versions
- 95% of nominal capacity is usable
Our take
Worth a look for larger homes or high usage, where capacity matters most. Confirm the current warranty in writing.
Before you buy
- For the federal battery discount, the exact model must be on the Clean Energy Council’s approved battery list. Ask your installer to confirm it.
- Work out the discount for your battery’s size with our battery rebate calculator.
- Compare quotes from accredited battery retailers near you, and check their accreditation.
Sources
Specifications and warranties change. We use the manufacturer’s own documents and say when one isn’t published; check the current version with your installer before you sign.