GrowattARK 15.3L
The Growatt ARK 15.3L is a home battery with usable capacity 13.81 kWh, charge power (continuous) 5 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 |
| Performance | |
| Usable capacity | 13.81 kWh1 |
| Nominal capacity | 15.35 kWh1 |
| Charge power (continuous) | 5 kW1 |
| Discharge power (continuous) | 5 kW1 |
| Dimensions & weight | |
| IP rating | IP651 |
| Min. operating temperature | -10 °C1 |
| Width | 650 mm1 |
| Height | 1,085 mm1 |
| Depth | 260 mm1 |
| Weight | 168 kg1 |
| Warranty & lifespan | |
| Warranty | 10 years1 |
Manufacturer documentation
- Datasheet / specifications — ARK LV Battery System – zonder versienummer
External links to Growatt'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 Growatt ARK 15.3L?
The usable capacity of the Growatt ARK 15.3L is 13.81 kWh.1
What is the charge power (continuous) of the Growatt ARK 15.3L?
The charge power (continuous) of the Growatt ARK 15.3L is 5 kW.1
Which cell chemistry does the Growatt ARK 15.3L use?
The cell chemistry of the Growatt ARK 15.3L is LFP.1
What is the warranty of the Growatt ARK 15.3L?
The warranty of the Growatt ARK 15.3L is 10 years.1
Sources
- ARK LV Battery System, zonder versienummer — SHENZHEN GROWATT NEW ENERGY CO.,LTD. · accessed 1 Oct 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)