Sessy 2.0 10 kWh vs Tesla Powerwall 3
Usable capacity: Sessy 2.0 10 kWh 10.4 kWh, Tesla Powerwall 3 13.5 kWh. The Tesla Powerwall 3 is better on 5 of 8 comparable points.
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Both models in detail
Who wins where
- Sessy 2.0 10 kWh
- Tesla Powerwall 3
Biggest differences
| Fact | 2.0 10 kWh | Powerwall 3 |
|---|---|---|
| Min. operating temperature | 0 °C | -20 °C |
| Discharge power (continuous) | 1.7 kW | 11.04 kW |
| Expandable up to | 31.2 kWh | 94.5 kWh |
| Charge power (continuous) | 2.2 kW | 5 kW |
| Weight | 96 kg | 130 kg |
| Usable capacity | 10.4 kWh | 13.5 kWh |
Score per area = position (0–100) relative to all 140 models in this category; higher is better.
| Technical specifications | Sessy2.0 10 kWh | TeslaPowerwall 3 |
|---|---|---|
| General | ||
| Cell chemistry | LFP1 | – |
| Smart charging on dynamic prices | Yes1 | – |
| Wi-Fi / app | Yes1 | Yes2 |
| Performance | ||
| Usable capacity | 10.4 kWh1 | 13.5 kWh✓2 |
| Nominal capacity | 11 kWh1 | – |
| Expandable up to | 31.2 kWh1 | 94.5 kWh✓2 |
| Charge power (continuous) | 2.2 kW1 | 5 kW✓2 |
| Discharge power (continuous) | 1.7 kW1 | 11.04 kW✓2 |
| Electrical | ||
| Phases | 11 | 13 |
| Backup power | – | Yes2 |
| Dimensions & weight | ||
| IP rating | IP201 | IP552 |
| Min. operating temperature | 0 °C1 | -20 °C✓2 |
| Width | 410 mm1 | 609 mm2 |
| Height | 780 mm1 | 1,105 mm2 |
| Depth | 270 mm1 | 193 mm2 |
| Weight | 96 kg✓1 | 130 kg2 |
| Warranty & lifespan | ||
| Warranted cycles | 6,0001 | – |
| Warranty | 10 years1 | 10 years2 |
Frequently asked questions
Which is better: the Sessy 2.0 10 kWh or the Tesla Powerwall 3?
Usable capacity: Sessy 2.0 10 kWh 10.4 kWh, Tesla Powerwall 3 13.5 kWh. The Tesla Powerwall 3 is better on 5 of 8 comparable points.
What is the usable capacity of the Sessy 2.0 10 kWh and the Tesla Powerwall 3?
Sessy 2.0 10 kWh: 10.4 kWh. Tesla Powerwall 3: 13.5 kWh.
Which is better on min. operating temperature: the Sessy 2.0 10 kWh or the Tesla Powerwall 3?
Tesla Powerwall 3: -20 °C. Sessy 2.0 10 kWh: 0 °C.
Which is better on discharge power (continuous): the Sessy 2.0 10 kWh or the Tesla Powerwall 3?
Tesla Powerwall 3: 11.04 kW. Sessy 2.0 10 kWh: 1.7 kW.
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How we collect and check this data →
Sources
- Sessy 2.0 10 kWh – specificaties, 09/2025 (tekst herkend met OCR) — Sessy B.V. · accessed 27 Sept 2026
- Powerwall 3-Datablad, 2026 — Tesla, Inc. · accessed 27 Sept 2026
- ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026