| Brand Name : | Weco |
| Model : | SL-5k3 XP LV/HV |
| Max. Usable Battery System Capacity : | 5.37 kWh |
| Rated Voltage (Individual Module) : | 51.2 Vdc |
| Voltage Range : | 46.5 – 56.8 Vdc |
| Usable Capacity : | 105 Ah |
| Max. Depth of Discharge : | 98% |
| Max Charge / Discharge Current : | Up to 1C max |
| Standard Charge / Discharge Current : | 0.5C |
| Forced Charge Control : | @ 2% DoD (programmable) |
| Application : | Low Voltage (HV application requires HV BOX) |
| Module Expandability : | 15 direct parallel (105 with LV HUB accessory) |
| Net Cluster Capacity : | 80.55 – 563.85 kWh (with LV HUB) |
| Dimensions (D × H × W) : | 492 × 580 × 170 mm |
| Weight : | 54 kg |
| Ingress Protection : | IP20 (indoor application only) |
| BMS Working Temperature : | -20 ~ +65 °C |
| Recommended Working Temperature Range : | 25 °C ± 10 °C |
| Humidity : | 5% – 95% RH non-condensing |
| Altitude : | < 3000 m |
| Expected Life Cycle @ STC : | > 7,000 cycles (25 °C, 80% DoD) |
| Performance Warranty : | 10 years |
| Communication Interfaces : | RS485, CAN, RS232, built-in Wi-Fi & Bluetooth |
| Certifications : | CB / IEC62368-1 / IEC62619 / CE / UN38.3 |
| Installation Accessories : | LV KIT (cables & brackets) ordered separately |
| Protection & Logic : | Three Protection Levels, Real-Time Balancing, Adaptive Charge/Discharge CAN Logic |
| Charging Logic : | 3-Step Adaptive Charging Logic |
| I/O : | 2 × programmable DI/DO |
| Monitoring : | Remote monitoring & control via WeCo App (Android / iOS) |
The SL-5k3 XP adds built-in Wi-Fi and Bluetooth to the proven Weco BMS platform, eliminating the need for an external monitoring accessory and giving installers direct app-based visibility out of the box.
High-Capacity Residential Solar
At 5.37 kWh per module, the SL-5k3 XP delivers roughly 20% more usable capacity than the 4k4 — so a home needing 20 kWh reaches that figure with fewer modules and less cabinet space.
Long-Life Lithium Investments
7,000+ cycles at 80% DoD make the SL-5k3 XP one of the longer-lived options in its class — well suited to installations expected to run for 15 to 20 years.
Remote Sites Needing Built-In Monitoring
Integrated Wi-Fi and Bluetooth mean the battery can be monitored and diagnosed remotely without the cost and complexity of an additional communication accessory.
Flexible LV / HV Architectures
The same module can be deployed in LV or HV configurations (HV via HV BOX accessory), giving installers and integrators one SKU for multiple system topologies.
Light Commercial Backup and Off-Grid
Cluster capacity up to 563.85 kWh in LV HUB mode puts commercial-scale storage within reach using residential-grade modules.
