BYD Battery-Box Premium LVS 4.0 (4kWh 48V System)
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The BYD Battery-Box Premium LVS 4.0 is the entry-level model of BYD's proven Low-Voltage storage series for residential and light commercial applications. This starter set includes one LFP battery module of 4 kWh at 51.2 V nominal, a PDU (Power Distribution Unit), the Base and the integrated BMU (Battery Management Unit). Thanks to the patented internal plug system, modules stack without additional wiring — expandable to 24 kWh per tower and up to 256 kWh in parallel configuration. Compatible with leading single-phase and three-phase inverters from GoodWe, Solis, Victron Energy and SMA.
- Capacity: 4.0 kWh usable, expandable to 256 kWh (64 modules in parallel).
- Low Voltage 48V: Nominal voltage 51.2 V — maximum safety and wide inverter compatibility.
- Cobalt-free LFP technology: Maximum safety, long service life and high thermal stability.
- High discharge current: 65 A continuous / 90 A peak (5 s) — suitable for emergency power and off-grid use.
- IP55 and 10-year warranty: Reliable in demanding environments; round-trip efficiency ≥ 95%.
Scalable from 4 kWh to 256 kWh
The LVS series is designed for maximum flexibility. Start with this 4.0 kWh set and easily add modules later — up to 6 modules (24 kWh) per tower, with multiple towers in parallel for larger installations. The system supports on-grid self-consumption optimisation, on-grid with backup function, and full off-grid operation. Communication is via CAN or RS485. Operating temperature: −10 °C to +50 °C (charge derating applies between −10 °C and +5 °C).
Not included: The BYD DC connection set for the LVS PDU (35–50 mm² connector set) — consisting of DC connectors, metal terminals, rubber cores, O-rings, claws and caps — and the battery cables to the inverter (2 × 35/50 mm² with M8 cable lugs, approx. 2 m) must be ordered separately.
| Specification | Value |
|---|---|
| Model | BYD Battery-Box Premium LVS 4.0 |
| Usable capacity | 4.0 kWh |
| Technology | Cobalt-free Lithium Iron Phosphate (LiFePO4) |
| Nominal voltage | 51.2 V |
| Operating voltage | 40 – 57.6 V |
| Max. continuous discharge current | 65 A |
| Peak discharge current | 90 A (5 seconds) |
| Round-trip efficiency | ≥ 95% |
| Communication | CAN / RS485 |
| Dimensions (H × W × D) | 528 × 650 × 298 mm |
| Weight | 64 kg (module 45 kg + PDU/BMU 19 kg) |
| Protection class | IP55 |
| Operating temperature | −10 °C to +50 °C |
| Applications | On-Grid / On-Grid + Backup / Off-Grid |
| Warranty | 10 years |
| Certifications | VDE2510-50, IEC62619, CE, CEC, UN38.3 |
What is included in the package?
| Component | Description / Quantity |
|---|---|
| PDU (Power Distribution Unit) | 1 × |
| Base (foot plate) | 1 × |
| BMU (Battery Management Unit) | Integrated in PDU |
| Battery module LVS 4.0 kWh | 1 × (45 kg) |
| Hangers – PDU side | 2 × |
| Hangers – wall side | 2 × |
| Screws and nuts (M4, M5, M6) | Assorted |
| Communication glands | 2 × |
| Documentation | 1 set |
| Not included | BYD DC connection set LVS PDU (35–50 mm² connector set): DC connectors ×2, metal terminals ×2, rubber cores ×2, O-rings ×2, claws ×2, caps ×2 |
| Not included | Battery cables to inverter (2 × 35/50 mm², M8 cable lugs, approx. 2 m) |
Which inverters are compatible with the LVS 4.0?
The BYD Battery-Box Premium LVS 4.0 is a 48V Low-Voltage battery system communicating via CAN or RS485, compatible with leading single-phase and three-phase inverters, including:
- GoodWe (ES/EM/SBP series)
- Solis (RHI/S6 series)
- Victron Energy (MultiPlus / Quattro)
- SMA (Sunny Boy Storage / Tripower)
- Fronius, Studer and other certified brands
Always consult the current BYD compatibility list at bydbatterybox.com.
How far can I expand this system?
The LVS series is highly scalable:
- Up to 6 modules (24 kWh) per tower — simple stacking without extra wiring.
- Up to 64 modules (256 kWh) by connecting multiple towers in parallel.
Each additional module increases both capacity and maximum discharge current, allowing the system to grow with your energy needs.
Does this battery help avoid feed-in costs?
Yes. By storing surplus solar energy in the LVS 4.0 and consuming it yourself later, you significantly increase your self-consumption rate, reducing feed-in to the grid and associated costs. Combined with a compatible inverter, the system also supports time-of-use (TOU) scheduling for maximum savings on your energy bill.
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