Alpha ESSSMILE-G3-T4
The Alpha ESS SMILE-G3-T4 is a home battery with usable capacity 3.65 kWh, charge power (continuous) 4 kW and cell chemistry LFP.1
Key figures
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Wi-Fi / app | Yes1 |
| Performance | |
| Usable capacity | 3.65 kWh1 |
| Smallest configuration | 3.65 kWh1 |
| Expandable up to | 43.8 kWh1 |
| Charge power (continuous) | 4 kW1 |
| Discharge power (continuous) | 4 kW1 |
| Efficiency | |
| Depth of discharge | 95 %1 |
| Electrical | |
| Backup power | Yes1 |
| Warranty & lifespan | |
| Warranty | 10 years1 |
Manufacturer documentation
- Product page
- Datasheet / specifications — SMILE-G3-T4/T5/T6/T8/T10 Residential Series – V09.15012025
External links to Alpha ESS's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Compare with
Frequently asked questions
What is the usable capacity of the Alpha ESS SMILE-G3-T4?
The usable capacity of the Alpha ESS SMILE-G3-T4 is 3.65 kWh.1
What is the charge power (continuous) of the Alpha ESS SMILE-G3-T4?
The charge power (continuous) of the Alpha ESS SMILE-G3-T4 is 4 kW.1
Which cell chemistry does the Alpha ESS SMILE-G3-T4 use?
The cell chemistry of the Alpha ESS SMILE-G3-T4 is LFP.1
What is the warranty of the Alpha ESS SMILE-G3-T4?
The warranty of the Alpha ESS SMILE-G3-T4 is 10 years.1
Sources
- SMILE-G3-T4/T5/T6/T8/T10 Residential Series, V09.15012025 — Alpha ESS · accessed 29 Sept 2026