SKTESS261 — 261 kWh liquid-cooled all-in-one system
A high-capacity liquid-cooled C&I battery cabinet with an all-in-one design, just 1.3 m² footprint and full EU-standard certification.
The SKTESS261 packs 261 kWh into a single liquid-cooled all-in-one cabinet with only a 1.3 m² footprint. Constant-temperature thermal management keeps it stable from -20°C to 55°C, and it ships fully EU-standard certified — well suited to demanding commercial & industrial projects.
Prefer air-cooled? See the SKTESS112 or SKTESS72 / 86 / 100.
Why SKTESS261
Highly integrated & fast deployment
All-in-one cabinet design, pre-assembled, with only a 1.3 m² footprint — easy installation and maintenance.
Premium LFP cells & wide temp
261 kWh large-capacity long-life LFP cells with constant-temperature thermal management; stable operation from -20°C to 55°C.
Multi-level full safety
Cell-level monitoring and IP67 PACK rating, with integrated electrical protection, aerosol fire suppression and explosion relief.
Cloud smart control & EU compliance
Remote cloud monitoring and O&M, cost-effective and fully EU-standard compliant — ideal for overseas projects.
SKTESS261 technical data
| Battery type | LiFePO4 |
|---|---|
| Nominal capacity | 314 Ah |
| Battery configuration | 1P260S |
| Nominal energy | 261.248 kWh |
| Nominal voltage | 832 V |
| Operating voltage range | 728 – 936 V |
| Max. continuous current | 157 A |
| Max. discharge current | 157 A |
| Charge / discharge rate | 0.5P |
| Max. charge–discharge efficiency | 93% |
| Ingress protection | IP54 |
| Anti-corrosion grade | C3 |
| Cycle life | ≥ 6000 (@25±2°C, 0.5P/0.5P, 70% EOL) |
| Operating temperature | -20 to 55°C (derating at ≥45°C) |
| Noise | < 70 dB |
| Relative humidity | 0 – 95% (non-condensing) |
| Communication | RS485 / Ethernet |
| Cooling | Liquid cooling |
| Dimensions (W × D × H) | 1000 × 1380 × 2330 mm |
| Weight | 2450 ±10 kg |
| Max. parallel | 5 units |
Source: SUNKET datasheet SKT-EN-2026V1.0. Specifications are subject to change without further notification.
Certification
Compatible inverter brands
Solis
FOX ESS Interested in the SKTESS261?
Tell us your project capacity — our local team will help size and quote the system.