V-TAC OHS15K-100 – high-voltage modular LiFePO4 energy storage system 15.36 kWh
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Description
V-TAC OHS15K-100 – high-voltage modular LiFePO4 energy storage system 15.36 kWh
V-TAC OHS15K-100 is a high-voltage, modular energy storage system based on LiFePO4 cells, with a total nominal capacity of 15.36 kWh (12.29 kWh usable capacity). The system consists of 3 VT-OH-5K battery modules (each 5.12 kWh / 100 Ah), a BMS control module with CAN communication, a mounting base, and complete wiring — both power and communication cables. Thanks to its rated voltage of 153.6 V and protection class IP65, the storage system is suitable for both indoor and outdoor installations, significantly increasing flexibility in PV system design. The stacked design (modules placed on top of one another) allows for quick installation without additional frames — simply position the base and stack the battery modules and BMS unit in sequence. The integrated battery management system monitors, in real time, system voltage, current, individual cell voltage and temperature, and module temperature, ensuring safety and optimal service life. The system holds CEI 0-21 certification and comes with a 10-year manufacturer's warranty.
Advantages and applications
- Modular design — 3 modules of 5.12 kWh each, stacked on a dedicated base, allowing for quick installation without specialist tools
- Integrated BMS with CAN communication and an intelligent SOC algorithm enables remote monitoring, online updates, and optimisation of charge and discharge cycles
- IP65 protection class — fully resistant to dust and water jets, allowing installation outside the building
- Service life ≥ 6,000 cycles (at 25±2°C, 0.5C/0.5C, EOL 70%) — long-term reliability in residential, commercial, and backup power installations
- Complete set in a single package — battery modules, BMS, base, 2 m communication cable, and 25 mm² / 2 m power cable
Technical specification
| Energy storage system | |
|---|---|
| Model | OHS15K-100 |
| Manufacturer | V-TAC |
| Battery type | LiFePO4 (LFP) |
| Number of battery modules | 3 |
| System nominal energy | 15.36 kWh |
| Usable capacity | 12.29 kWh |
| System rated voltage | 153.6 V |
| Recommended charging / discharging current | 40 / 50 A |
| Service life | ≥ 6,000 cycles (25±2°C, 0.5C/0.5C, EOL 70%) |
| Battery module | |
| Module name | VT-OH-5K LiFePO4 5.12V 100Ah |
| Module nominal energy | 5.12 kWh |
| Module rated voltage | 51.2 V |
| Module usable capacity | 100 Ah |
| Module dimensions (mm) | 590 × 420 × 194 |
| Module weight | 45.6 kg |
| BMS control module | |
| Operating voltage | 120–750 Vdc |
| Rated charging / discharging current | 40 A |
| Maximum charging / discharging current | 50 A |
| Communication | CAN |
| BMS dimensions (mm) | 590 × 420 × 165 |
| BMS weight | 16.1 kg |
| Base | |
| Base dimensions (mm) | 590 × 420 × 80 |
| Base weight | 8.5 kg |
| Operating conditions and protection | |
| Operating temperature range – charging | 0 ~ 45°C |
| Operating temperature range – discharging | -10 ~ +55°C |
| Storage temperature | 0 ~ 35°C |
| Ingress protection class | IP65 |
| Permissible installation altitude above sea level | ≤ 2,000 m |
| Installation method | floor-standing |
| Monitored parameters | system voltage, current, cell voltage, cell temperature, module temperature |
| SOC algorithm | intelligent algorithm |
| General data | |
| Standard compliance | CEI 0-21 |
| Warranty | 10 years |
| System dimensions (mm) | 590 × 420 × 698 |
| System weight | 161.4 kg |
| EAN | 3800170224285 |
Files to download:
Technical data
| Usable capacity [kWh] | 12.29 |
| Continuous power [kW] | 6.14 |
| Peak power 10 s [kW] | 7.68 |
| Maximum current [A] | 50 |
| Chemistry | LFP |
| Lifespan [cycles] | 6000 |
| IP rating | 65 |
| Min. charging temp. [°C] | 0 |
| Max. charging temp. [°C] | 45 |
| Min. discharge temp. [°C] | ‑10 |
| Max. discharge temp. [°C] | 55 |
| Min. modules [pcs] | 3 |
| Max modules [pcs.] | 8 |