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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
PerformanceDimensions & weightWarranty & lifespan
Performance: Growatt ARK 5.1L 19, SolaX TP-HS50E 22; Dimensions & weight: Growatt ARK 5.1L 59, SolaX TP-HS50E 93; Warranty & lifespan: Growatt ARK 5.1L 49, SolaX TP-HS50E 49

Biggest differences

FactARK 5.1LTP-HS50E
Min. operating temperature-10 °C-30 °C
Charge power (continuous)2.5 kW3 kW
Discharge power (continuous)2.5 kW3 kW
Weight56 kg47 kg
All specifications ↓

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

  1. ARK LV Battery System, zonder versienummer — SHENZHEN GROWATT NEW ENERGY CO.,LTD. · accessed 1 Oct 2026
  2. SolaX X1-IES All-in-one Residential ESS, V1.7 (tekst herkend met OCR) — SolaX Power · accessed 1 Oct 2026