The Deye Wall-Mounted Battery (LV) is a low-voltage energy storage unit housed in a wall-mount enclosure, designed to genuinely simplify installation in homes or businesses. Its key advantage lies in the LiFePO4 (LFP) chemistry, cobalt-free - thermally stable, resistant to overheating, and preferred where safety and longevity are paramount. In practice, this translates to a high cycle count and reliable operation year after year, complemented by multiple parallel expansions, enabling the system to scale from a single module to greater capacity as energy consumption increases.
Each module operates with an intelligent BMS that monitors parameters and protects the cells, facilitating sustained performance over time. The series is designed for compatibility with hybrid inverters and standard PV systems, supporting self-consumption, backup power, and off-grid scenarios. For the user, this means predictable operation, and the manufacturer's warranty clearly signals that the solution is engineered for long-term investment.
Ranking
Price offers
| Shop | Country | Price | Per kWh | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| Master Energy | Poland | 8 523.90 zł incl. VAT | 591.94 zł/kWh | In stock | 3h ago | Visit shop |
| Sklep Soltech | Poland | 7 218.68 zł net | 501.30 zł/kWh | Not stated | 3h ago | Visit shop |
| www.nejpanely.cz | Czechia | 57 000 Kč incl. VAT | 3 958.33 Kč/kWh | Not stated | 16h ago | Visit shop |
| livre.pt | Portugal | 2 107.99 € net | 146.39 €/kWh | In stock | 3d ago | Visit shop |
Specifications
Pros and cons
The official datasheet for the RW-F16 model confirms a lifespan of ≥6000 full cycles while maintaining at least 70% of its final capacity. This is comparable to the leading models in the LV segment (BYD Battery-Box LVS, Pylontech Force L2 - similar claims), while the LFP chemistry eliminates the thermal risks associated with NMC batteries and excludes cobalt, which is important for obtaining insurance certification for installations.
The manufacturer's documentation (RW-F16) confirms the ability to connect up to 32 units simultaneously, achieving a total nominal capacity of 512 kWh. This is a rare feature in the LV wall-mounted segment - most competitors (e.g., Pylontech US5000) limit parallel configurations to 8-16 units, making the Deye series particularly attractive for C&I and prosumers planning phased expansion.
The official list of approved inverters (DY-LV48-0109, 2025) includes Deye, Sunsynk, Growatt, Solax, Goodwe, SMA, Luxpower, and others. Support for both CAN and RS485 protocols reduces the risk of vendor lock-in and simplifies integration with existing inverters owned by the customer.
Selected models from the series (e.g., AI-W5.1-B, RW-F16) have an IP65 rating and operate passively (without a fan). This eliminates mechanical cooling failures and noise, and the operating temperature range of -20°C to +55°C allows installation in unheated garages and warehouses - a significant advantage over, for example, LG RESU (IP55, range to -10°C).
The SE series (e.g., SE-G5.1 Pro-B, SE-F16) is covered by the standard 10-year manufacturer warranty with CEC (Australia) certification, which confirms compliance with the requirements of regulated markets. This warranty is comparable to those offered by leading manufacturers (BYD, Pylontech) and provides a solid foundation for project financing by financial institutions.
Official documentation for RW models indicates a round-trip efficiency of 90%. BYD Battery-Box Premium LVS and Pylontech Force L2 claim ~96-97%, which, with a typical cycle of 365×/year and a capacity of 16 kWh, translates to approximately 350-400 kWh more energy losses per year from the Deye side - a measurable difference for installations with a high number of cycles.
SE models are covered by a 10-year warranty, while some RW (wall-mounted) models offer a 5-year warranty with the option to extend it according to contractual terms. Differences within a single series require careful verification of the warranty card before purchase and can complicate bidding by installers.
Alternatives
About the Wall-Mounted Battery (LV) series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.