--- title: "Deye SUN-3.6K-SG04LP1-AU Hybrid Inverter: Specs & Datasheet | ComparePV" description: "Deye SUN-3.6K-SG04LP1-AU 3.6 kW hybrid inverter. Specs: 97.0% European efficiency, 2 MPPT, 500 V max DC input, 5 yrs warranty." source: "https://comparepv.com/inverter/deye-sun-3-6k-sg04lp1-au" updated: 2026-01-17 --- # Deye SUN-3.6K-SG04LP1-AU ## Identity - **Manufacturer:** Deye - **Model:** SUN-3.6K-SG04LP1-AU - **Series:** SG04LP1-AU - **Rated AC power:** 3.6 kW - **Type:** Hybrid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 362 inverters from 3 to 6 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 97.0% | 97.2% | Typical | 174 | | MPPT trackers | 2 | 2 | Typical | 13 | | Max DC input voltage | 500 V | 600 V | Weak - bottom 19% | 237 | | Weight per kW | - | 3.3 | | | | Warranty | 5 yrs | 5 yrs | Typical | 34 | ## Specification ### AC output - **Rated AC power:** 3.6 kW - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 15.7 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading to 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 4.68 kW - **Max DC voltage:** 500 V - **MPPT voltage range:** 150 to 425 V - **Start-up voltage:** 125 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 13.0 A - **Max short-circuit current per MPPT:** 17.0 A ### Efficiency - **European efficiency:** 97.0 % - **Max efficiency:** 97.6 % ### Battery - **Battery port:** Yes - **Battery voltage:** 40–60 V - **Max charge current:** 135.0 A - **Max discharge current:** 135.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 433 × 330 × 238 mm - **Enclosure:** IP65 - **Cooling:** natural - **Noise:** 30 dB - **Operating temperature:** -45 to 60 °C ### Connectivity and protection - **Interfaces:** Display - **Protocols:** RS485, CAN - **Protection:** Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** AS/NZS 4777.2, IEC/EN 61000-6-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61000-6-4, IEC/EN 62109-1, IEC/EN 62109-2 ### Pros - **CEC certificate and compliance with AS4777** - The SG04LP1-AU series has Australian CEC (Clean Energy Council) approval and meets the requirements of AS4777 for the Australian grid. The AU version is a dedicated variant - not a European model with a workaround - which makes it easier to obtain STCs (Small-scale Technology Certificates) and connect through a certified installer. - **High conversion efficiency** - With peak efficiency of 97.6%, European efficiency of 97%, and MPPT efficiency of 99.9%, this series exceeds the median efficiency of single-phase hybrid systems in this price range (typical EU efficiency in this segment: 96-97%). This translates into a real reduction in losses over a year. - **Dual MPPT, 150-425 V DC + AC coupling** - Two independent MPPT (150-425 V range) trackers enable the operation of two separate strings with different orientations or sun exposure, without cross-string losses. The native AC-coupling functionality allows for the addition of a battery storage system to an existing grid-tie installation without requiring any DC-side modifications. - **Scalable to 16 units simultaneously** - Up to 16 SG04LP1-AU inverters can be connected in parallel (both on-grid and off-grid), allowing the system's power output to be expanded to approximately 96 kW on a single control infrastructure. Three units create a three-phase system - a rare flexibility in the segment of single-phase low-voltage (LV) hybrid systems. - **10-year warranty in the AU/NZ market** - Deye offers a 10-year warranty in Australia and New Zealand: full coverage (parts + labor + transportation) for the first 5 years, and parts-only coverage for the remaining 5 years. This 10-year warranty aligns with the market standard for mid-range hybrid systems, which typically range from 5 to 10 years. ### Cons - **Exclusively low-voltage batteries (LV 40-60 V)** - The SG04LP1-AU only supports low-voltage (LV) batteries (nominal voltage of 48 V, with a range of 40-60 V). The absence of a high-voltage (HV) port (100-400 V) prevents direct compatibility with popular high-voltage batteries (such as BYD HVS, Pylontech Force H, and Dyness HV), which are becoming increasingly common in new Australian installations. - **Warranty service provided by importers - absence of a Deye office in AU** - Deye does not operate its own service center in Australia. Warranty service is provided by local distributors/importers. Risk: Changes or bankruptcy of the importer could extend the time required for repairs or make it difficult to obtain replacement parts after the manufacturer's warranty period expires. ## About this series The **Deye SG04LP1-AU** series are single-phase hybrid inverters that combine grid connection with energy storage capability and backup mode operation. This dual functionality makes them suitable for both new installations and the modernization of existing photovoltaic systems via **AC-coupling**, enabling battery integration without a complete system overhaul. Their notable features include **2 independent MPPTs**, which simplify the design of rooftop installations across two tilts or accommodate partial shading - each tracker optimizes the performance of its dedicated string, leading to more consistent energy yields throughout the day. High **European efficiency** ensures genuinely good energy conversion under typical operating conditions, not just in laboratory settings, contributing to increased self-consumption and reduced losses. Monitoring is convenient, as the devices support remote management and network module communication, along with integration with monitoring platforms. The series is compatible with both lead-acid and lithium-ion batteries (with BMS support), and the IP65-rated enclosure facilitates mounting even outdoors. ## Questions ### Is the Deye SG04LP1-AU inverter suitable for upgrading an existing solar panel installation without replacing the panels? Yes, the Deye SG04LP1-AU series supports AC coupling, which allows you to connect a storage system to an existing installation without removing the existing inverter or panels. In this case, the generator input port functions as an AC input for microinverters or older inverters. This is an ideal solution for those who want to expand their system with a battery without incurring the cost of a major overhaul. ### What is the peak power output of the Deye SG04LP1-AU inverter, and what does this mean in practice? Models in the SG04LP1-AU series achieve a maximum efficiency of 97.6%, with European efficiency (Euro efficiency) reaching approximately 97%. European efficiency is measured under realistic operating conditions, not just under full load. In practice, this translates to minimal losses during energy conversion on sunny days and in the morning or evening, which increases self-consumption. ### Which batteries are compatible with the Deye SG04LP1-AU, and does it support a Battery Management System (BMS)? The Deye SG04LP1-AU inverter is compatible with both lead-acid and lithium-ion batteries, including LiFePO4. Communication with the lithium battery occurs via RS485 or CAN port, allowing the inverter to automatically adjust charging parameters based on BMS readings. A list of approved batteries is available on the Deye website; it is recommended to check this list before purchasing a battery. ### What is the warranty period for Deye SG04LP1-AU inverters? The Deye SG04LP1-AU series is covered by the standard manufacturer's warranty of 5 years, which can be extended to 10 years (5+5) depending on the distributor and market. It is advisable to confirm the warranty terms with a Polish importer before purchasing, as the scope of service support may vary depending on the seller. ### Does the Deye SG04LP1-AU inverter function as a backup power source when the main power supply from the grid fails? Yes, the SG04LP1-AU series supports a backup power mode. In the event of a power outage, the inverter automatically switches to battery power, ensuring the continued operation of connected devices. The switching time is very short, making it suitable for protecting sensitive devices that are susceptible to power interruptions, such as refrigerators and routers. ### What power PV can be connected to the Deye SG04LP1-AU, and how many MPPT does this inverter have? The SG04LP1-AU series features 2 independent MPPT (Maximum Power Point Tracking) trackers with a voltage range of 125-500V. The maximum DC input power depends on the model: for the 5 kW version, it is 7500W, and for the 6 kW version, it is up to 9000W. The two independent MPPT trackers allow for connecting panels from two roof sections or strings with different azimuth angles without affecting each other's performance. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/SUN-3-6K-SG04LP1-AU-Deye-8dc8e9f185e0.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt SPM 3600TL-HU](https://comparepv.com/inverter/growatt-spm-3600tl-hu) | 3.6 kW | 97.6% | 2 | 26.0 kg | +0.6 pp efficiency | | [Growatt MIN 3600TL-XH](https://comparepv.com/inverter/growatt-min-3600tl-xh) | 3.6 kW | 97.2% | 2 | 10.8 kg | Similar on paper | | [Growatt MIN 3600TL-XA](https://comparepv.com/inverter/growatt-min-3600tl-xa) | 3.6 kW | 97.2% | | 10.8 kg | Similar on paper | | [Growatt MIN 3600TL-XH2](https://comparepv.com/inverter/growatt-min-3600tl-xh2) | 3.6 kW | 97.2% | 2 | 10.8 kg | Similar on paper | | [GoodWe GW3600N-EH](https://comparepv.com/inverter/goodwe-gw3600n-eh) | 3.6 kW | 97.0% | 2 | 17.0 kg | Similar on paper | | [Deye SUN-3.6K-SG04LP1-EU](https://comparepv.com/inverter/deye-sun-3-6k-sg04lp1-eu) | 3.6 kW | 97.0% | 2 | 14.0 kg | Similar on paper | | [Ginlong Solis RHI-3.6K-48ES-5G](https://comparepv.com/inverter/ginlong-solis-rhi-3-6k-48es-5g) | 3.6 kW | 96.8% | 2 | 17.0 kg | Similar on paper | | [SMA Solar SBSE3.6-50](https://comparepv.com/inverter/sma-solar-sbse3-6-50) | 3.6 kW | 96.6% | 3 | 17.5 kg | -0.4 pp efficiency, +1 MPPT | --- Source: https://comparepv.com/inverter/deye-sun-3-6k-sg04lp1-au