--- title: "Easun Power LSOLAR SML-II-3.6KW Off-grid Inverter: Specs & Datasheet | ComparePV" description: "Easun Power LSOLAR SML-II-3.6KW 3.6 kW off-grid inverter. Specs: 1 MPPT, 500 V max DC input, 11.0 kg, 1 yrs warranty." source: "https://comparepv.com/inverter/easun-power-lsolar-sml-ii-3-6kw" updated: 2026-01-19 --- # Easun Power LSOLAR SML-II-3.6KW ## Identity - **Manufacturer:** Easun Power - **Model:** LSOLAR SML-II-3.6KW - **Series:** LSOLAR SML-II - **Rated AC power:** 3.6 kW - **Type:** Off-grid - **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 | - | 97.2% | | | | MPPT trackers | 1 | 2 | Weak - bottom 7% | 222 | | Max DC input voltage | 500 V | 600 V | Weak - bottom 19% | 237 | | Weight per kW | 3.1 | 3.3 | Typical | 160 | | Warranty | 1 yrs | 5 yrs | Weak - bottom 1% | 117 | ## Specification ### AC output - **Rated AC power:** 3.6 kW - **Max apparent power:** 3.60 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Power factor:** PF=1.0 ### PV input - **Max DC input power:** 5.00 kW - **Max DC voltage:** 500 V - **MPPT voltage range:** 120 to 450 V - **MPPT trackers:** 1 - **Max input current per MPPT:** 100.0 A ### Efficiency - **Max efficiency:** 98.0 % ### Battery - **Battery port:** Yes - **Max charge current:** 100.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 300 × 100 × 440 mm - **Weight:** 11.0 kg - **Enclosure:** IP21 - **Operating temperature:** 0 to 55 °C - **Max humidity:** 95 % ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** USB, RS232, GPRS, WiFi ### Warranty and certificates - **Warranty:** 1 years - **Certifications:** CE ### Pros - **Functioning without batteries from day one** - The SML-II allows for powering loads directly from PV without a connected battery (DC voltage of PV >200 V required), which enables the gradual construction of off-grid systems. Most comparably priced off-grid inverters (e.g., Voltronic Axpert) require a battery to be present for initial startup. - **Wide input voltage range, up to 500 V DC** - The maximum input voltage for MPPT is 500 V DC at a charging current of 100 A (5.5 kW model), which allows for the construction of longer strings and reduces transmission losses in distributed systems. Models in this price range (e.g., Growatt SPF 5000 ES) typically offer up to 450 V DC. - **Monitoring of WiFi in the standard** - The built-in Wi-Fi module with a mobile app is available at no extra cost, while manufacturers in the mid-range (e.g., Victron Energy) charge around €60-90 for the communication module (VE.Direct WiFi) as an optional accessory. - **Workload for up to 9 units** - The series supports the connection of up to 9 inverters in parallel, enabling power scaling up to approximately 49.5 kW (9 × 5.5 kW) without the need for an external controller. This is a significant advantage for commercial buildings that are building the system incrementally. - **Compatibility with LiFePO4 batteries** - The built-in BMS algorithm enables direct communication with popular lithium battery packs (LiFePO4 48 V), eliminating the need for an external protocol converter in typical residential energy storage systems. ### Cons - **Single MPPT tracker** - A single MPPT (Maximum Power Point Tracking) tracker cannot independently control strings with different orientations or tilt angles. Competitive prosumer-grade models, such as the Growatt SPF 6000T DVM (dual MPPT), offer greater flexibility for multi-pitched roof installations. - **Warranty is only 2 years** - The manufacturer offers a 2-year warranty, while off-grid tier-1 inverters (such as Victron MultiPlus-II and SMA Sunny Island) typically come with a 5-year standard warranty. The shorter warranty period is particularly important in installations where access for maintenance and repairs is difficult. - **Poor after-sales service** - On the Trustpilot platform, the Easun Power brand receives an average rating of 1.5-2/5 (data: 2024-2025), with the majority of reviews citing a lack of response from customer service regarding warranty claims and the replacement of faulty units. Easun does not manufacture its own products and operates as an OEM-reseller, which limits its technical support capabilities in the European market. ## About this series The Easun Power LSOLAR SML-II inverter series is a practical off-grid solution featuring an integrated MPPT regulator, designed to power homes or small businesses using photovoltaics and energy storage - even in locations where you don’t want to feed electricity back into the grid. A key feature is its ability to operate **with or without a battery**, enabling staged installations and allowing PV energy to supply loads directly. The SML-II utilizes **one MPPT tracker**, facilitating stable operation of the panel string and better maintaining energy yield under varying sunlight conditions. In practice, this European efficiency translates to lower energy losses in typical climatic conditions - resulting in more real energy production from the same installation. For monitoring and service communication, **WiFi monitoring** is available, simplifying diagnostics and parameter viewing. The series is compatible with popular energy storage systems (including lithium-based ones) and offers **CE/RoHS certifications**. This makes it an excellent choice for residential installations and facilities where energy independence matters. ## Questions ### Can the Easun Power LSOLAR SML-II inverter operate without batteries? Yes, this is one of the key advantages of the LSOLAR SML-II series. The inverter can power loads directly from the PV panels without a connected energy storage system. This allows for phased installation - initially, the panels and inverter can be used, and the battery can be added later. This is a convenient solution for those who want to start using solar power without the full initial investment. ### What types of batteries are compatible with the LSOLAR SML-II inverter? The LSOLAR SML-II series is compatible with a wide range of energy storage systems: lithium iron phosphate (LiFePO4), lithium-ion, gel, AGM, and traditional lead-acid batteries. This allows users to choose a battery that fits their budget and the specific requirements of their installation - whether it's more affordable AGM batteries or modern, long-lasting LiFePO4 battery packs. ### What is the MPPT voltage range in the Easun Power LSOLAR SML-II inverter? The integrated MPPT tracker operates within a voltage range of 120-450 V DC. The series features a single MPPT tracker, which means that the array of panels should have uniform parameters and orientation. The conversion efficiency is approximately 98%, which, in practice, translates to minimal energy losses and improved annual yield from the installation. ### Is the LSOLAR SML-II a grid-tied or off-grid inverter? The LSOLAR SML-II is a purely off-grid inverter - it is not designed to feed energy back into the electrical grid. It is suitable for any location where energy independence is the primary concern: in off-grid homes, on recreational properties, in small businesses, or on farms. It does not require a contract with an energy provider or a two-way meter. ### How to remotely monitor the operation of the Easun Power LSOLAR SML-II inverter? The LSOLAR SML-II series features an integrated WiFi module that allows for monitoring of operating parameters via a mobile app or web browser. It is possible to track PV power generation, battery charge status, and power consumption by loads. It also supports service communication via USB or RS232, which is useful during diagnostics and configuration by the installer. ### What guarantees and certifications does the LSOLAR SML-II inverter have? The Easun Power LSOLAR SML-II is covered by a 12-month manufacturer's warranty for defects caused by normal use. The series has CE and RoHS certifications, which confirm compliance with European market requirements for safety and restrictions on hazardous substances. It is advisable to confirm the warranty terms with your chosen distributor before making a purchase. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/SML-II-56K-30b6eea6f922.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Easun Power ISolar SMV IV 3600-24](https://comparepv.com/inverter/easun-power-isolar-smv-iv-3600-24) | 3.6 kW | | | 9.0 kg | 2.0 kg lighter | | [Easun Power ISolar SMG II 3.6KW](https://comparepv.com/inverter/easun-power-isolar-smg-ii-3-6kw) | 3.6 kW | | | 9.0 kg | 2.0 kg lighter | | [Easun Power ISolar-SMX-II-3.6KW](https://comparepv.com/inverter/easun-power-isolar-smx-ii-3-6kw) | 3.6 kW | | 1 | 6.9 kg | 4.1 kg lighter | | [Growatt SPF 3500 ES](https://comparepv.com/inverter/growatt-spf-3500-es) | 3.5 kW | | 1 | 11.5 kg | -0.1 kW | | [Easun Power ISolar SMR II 3.5KW](https://comparepv.com/inverter/easun-power-isolar-smr-ii-3-5kw) | 3.5 kW | | | 11.5 kg | -0.1 kW | | [Easun Power ISolar MLV 3.5KW-U](https://comparepv.com/inverter/easun-power-isolar-mlv-3-5kw-u) | 3.5 kW | | | 10.0 kg | -0.1 kW, 1.0 kg lighter | | [SMA Solar SI4.4M-13](https://comparepv.com/inverter/sma-solar-si4-4m-13) | 3.3 kW | | | 44.0 kg | -0.3 kW, 33.0 kg heavier | | [Growatt SPF 4000T DVM](https://comparepv.com/inverter/growatt-spf-4000t-dvm) | 4 kW | | | 42.0 kg | +0.4 kW, 31.0 kg heavier | --- Source: https://comparepv.com/inverter/easun-power-lsolar-sml-ii-3-6kw