Growatt ARK 5.1L vs SolaX TP-HS50E

Usable capacity: Growatt ARK 5.1L 4.6 kWh, SolaX TP-HS50E 4.6 kWh. The SolaX TP-HS50E is better on 4 of 7 comparable points.
Who wins where
- Growatt ARK 5.1L
- SolaX TP-HS50E
Biggest differences
| Fact | ARK 5.1L | TP-HS50E |
|---|---|---|
| Min. operating temperature | -10 °C | -30 °C |
| Charge power (continuous) | 2.5 kW | 3 kW |
| Discharge power (continuous) | 2.5 kW | 3 kW |
| Weight | 56 kg | 47 kg |
Score per area = position (0–100) relative to all 130 models in this category; higher is better.
| Technical specifications | GrowattARK 5.1L | SolaXTP-HS50E |
|---|---|---|
| General | ||
| Cell chemistry | LFP 1 | LFP 2 |
| Performance | ||
| Usable capacity | 4.6 kWh 1 | 4.6 kWh 2 |
| Nominal capacity | 5.12 kWh ✓ 1 | 5.1 kWh 2 |
| Expandable up to | – | 20.4 kWh 2 |
| Charge power (continuous) | 2.5 kW 1 | 3 kW ✓ 2 |
| Discharge power (continuous) | 2.5 kW 1 | 3 kW ✓ 2 |
| Peak power | – | 5.1 kW 2 |
| Electrical | ||
| Backup power | – | Yes 2 |
| Off-grid capable | – | Yes 2 |
| Dimensions & weight | ||
| IP rating | IP65 1 | IP66 2 |
| Min. operating temperature | -10 °C 1 | -30 °C ✓ 2 |
| Width | 650 mm 1 | 730 mm 2 |
| Height | 365 mm 1 | 318 mm 2 |
| Depth | 260 mm 1 | 150 mm 2 |
| Weight | 56 kg 1 | 47 kg ✓ 2 |
| Warranty & lifespan | ||
| Warranted cycles | – | 6,000 2 |
| Warranty | 10 years 1 | 10 years 2 |
Sources
- ARK LV Battery System, zonder versienummer — SHENZHEN GROWATT NEW ENERGY CO.,LTD. · accessed 1 Oct 2026
- SolaX X1-IES All-in-one Residential ESS, V1.7 (tekst herkend met OCR) — SolaX Power · accessed 1 Oct 2026