Sessy 2.0 5 kWh vs sonnen sonnenBatterie 10/5.5
Usable capacity: Sessy 2.0 5 kWh 5.2 kWh, sonnen sonnenBatterie 10/5.5 5 kWh. The sonnen sonnenBatterie 10/5.5 is better on 3 of 7 comparable points.
Who wins where
- Sessy 2.0 5 kWh
- sonnen sonnenBatterie 10/5.5
Biggest differences
| Fact | 2.0 5 kWh | sonnenBatterie 10/5.5 |
|---|---|---|
| Expandable up to | 31.2 kWh | 198 kWh |
| Weight | 46 kg | 98 kg |
| Discharge power (continuous) | 1.7 kW | 3.4 kW |
| Charge power (continuous) | 2.2 kW | 3.4 kW |
| Usable capacity | 5.2 kWh | 5 kWh |
Score per area = position (0–100) relative to all 130 models in this category; higher is better.
| Technical specifications | Sessy2.0 5 kWh | sonnensonnenBatterie 10/5.5 |
|---|---|---|
| General | ||
| Cell chemistry | LFP 1 | LFP 2 |
| Smart charging on dynamic prices | Yes 1 | – |
| Wi-Fi / app | Yes 1 | – |
| Performance | ||
| Usable capacity | 5.2 kWh ✓ 1 | 5 kWh 2 |
| Nominal capacity | 5.5 kWh 1 | 5.5 kWh 2 |
| Expandable up to | 31.2 kWh 1 | 198 kWh ✓ 2 |
| Charge power (continuous) | 2.2 kW 1 | 3.4 kW ✓ 2 |
| Discharge power (continuous) | 1.7 kW 1 | 3.4 kW ✓ 2 |
| Electrical | ||
| Phases | 1 1 | – |
| Dimensions & weight | ||
| IP rating | IP20 1 | IP30 2 |
| Min. operating temperature | – | -5 °C 2 |
| Width | 410 mm 1 | 690 mm 2 |
| Height | 670 mm 1 | – |
| Depth | 200 mm 1 | 270 mm 2 |
| Weight | 46 kg ✓ 1 | 98 kg 2 |
| Warranty & lifespan | ||
| Warranted cycles | 6,000 1 | – |
| Warranty | 10 years 1 | 10 years 2 |
Sources
- Sessy 2.0 5 kWh – specificaties, 09/2025 (tekst herkend met OCR) — Sessy B.V. · accessed 27 Sept 2026
- sonnenBatterie 10, 1 — sonnen · accessed 29 Sept 2026