Sessy2.0 5 kWh
The Sessy 2.0 5 kWh is a home battery with usable capacity 5.2 kWh, charge power (continuous) 2.2 kW and cell chemistry LFP.1
Key figures
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SEAI home battery grant
UnknownA €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Smart charging on dynamic prices | Yes1 |
| Wi-Fi / app | Yes1 |
| Performance | |
| Usable capacity | 5.2 kWh1 |
| Nominal capacity | 5.5 kWh1 |
| Expandable up to | 31.2 kWh1 |
| Charge power (continuous) | 2.2 kW1 |
| Discharge power (continuous) | 1.7 kW1 |
| Electrical | |
| Phases | 11 |
| Dimensions & weight | |
| IP rating | IP201 |
| Width | 410 mm1 |
| Height | 670 mm1 |
| Depth | 200 mm1 |
| Weight | 46 kg1 |
| Warranty & lifespan | |
| Warranted cycles | 6,0001 |
| Warranty | 10 years1 |
Manufacturer documentation
- Product page
- Datasheet / specifications — Sessy 2.0 5 kWh – specificaties – 09/2025
External links to Sessy's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
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Frequently asked questions
What is the usable capacity of the Sessy 2.0 5 kWh?
The usable capacity of the Sessy 2.0 5 kWh is 5.2 kWh.1
What is the charge power (continuous) of the Sessy 2.0 5 kWh?
The charge power (continuous) of the Sessy 2.0 5 kWh is 2.2 kW.1
Which cell chemistry does the Sessy 2.0 5 kWh use?
The cell chemistry of the Sessy 2.0 5 kWh is LFP.1
What is the warranty of the Sessy 2.0 5 kWh?
The warranty of the Sessy 2.0 5 kWh is 10 years.1
Sources
- Sessy 2.0 5 kWh – specificaties, 09/2025 (tekst herkend met OCR) — Sessy B.V. · accessed 27 Sept 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)