Description
W3-5D is a wall-mounted home energy storage battery from Lithium Valley, built with high-quality, high-capacity Lithium Iron Phosphate (LiFePO4) cells. Delivering 2,560Wh (2.56kWh) of usable energy at 25.6V nominal voltage with a 100Ah rated capacity, the W3-5D is purpose-built for residential solar systems that need a compact, 24V-class storage solution supporting both hybrid grid-tied and off-grid operation modes.
At the core of the W3-5D is an independently designed Battery Management System (BMS), verified for compatibility across multiple inverter brands — giving installers real flexibility whether integrating into an existing solar setup or designing a new one. Built with A+ grade LiFePO4 cells, the battery delivers a maximum continuous charge/discharge current of 100A (50A standard) and a conversion efficiency of 99% at 25°C/0.5C, ensuring minimal energy loss between charge and discharge cycles.
Built-in Bluetooth (BLE) connectivity lets homeowners and installers check real-time battery operating status, configure BMS settings, and receive firmware updates directly — no separate monitoring device required. Communication is also supported via RS232, CAN, and RS485 interfaces for broader hybrid inverter integration. For growing energy needs, the W3-5D scales impressively: up to 20 units can be connected in parallel, reaching a maximum system capacity of 51.2kWh.
Rated IP21 for indoor installation or protected outdoor eaves, and certified to UN38.3, MSDS, and Marine Report standards, the W3-5D is a dependable, expandable foundation for home energy storage and solar power applications — built to grow alongside your household’s energy needs.
Key Features
- 2,560Wh (2.56kWh) energy capacity — 25.6V nominal, 100Ah rated capacity
- A+ grade LiFePO4 cells — longer life and enhanced safety
- Independently designed BMS — verified compatibility across multiple inverter brands
- 99% conversion efficiency — minimal energy loss at 25°C/0.5C
- 100A max continuous charge/discharge current — efficient energy cycling
- Built-in Bluetooth (BLE) — real-time status monitoring, BMS configuration & firmware updates
- RS232 / CAN / RS485 communication — broad hybrid inverter compatibility
- Hybrid grid-tied & off-grid operation modes — flexible deployment for any system
- Parallel expansion up to 20 units — maximum system capacity of 51.2kWh
- IP21 protection rating — suitable for indoor or protected outdoor eave installation
- Wall-mounted or floor installation — flexible, space-saving design
- Certified: UN38.3, MSDS, Marine Report
Technical Data Table
| Specification | Value |
|---|---|
| Model | W3-5D |
| Brand | Lithium Valley |
| Battery Type | Wall-mounted/floor home energy storage |
| Nominal Voltage | 25.6 V |
| Rated Capacity | 100 Ah |
| Energy | 2,560 Wh (2.56 kWh) |
| Cell Technology | Lithium Iron Phosphate (LFP) |
| Operating Voltage | 22.4 – 28.8 V |
| Standard Charge/Discharge Current | 50 A |
| Max. Continuous Charge/Discharge Current | 100 A |
| Conversion Efficiency | 99% @ 25°C/0.5C |
| Communication | RS232 / CAN / RS485 / Bluetooth (BLE) |
| Scalability | Up to 20 units in parallel |
| Max. Parallel System Capacity | 51.2 kWh |
| Dimensions (L×W×D) | 413 × 375.5 × 145 mm |
| Weight | ~27.7 kg |
| Installation | Wall-mounted or floor |
| Cooling | Natural convection |
| Protection Rating | IP21 |
| Charging Temperature | 0°C to 55°C |
| Discharging Temperature | –20°C to 60°C |
| Storage Temperature | 20–45°C (≤3 months) / 25±3°C (>3 months) |
| Storage Humidity | 65 ± 20% RH |
| Certifications | UN38.3, MSDS, Marine Report |
