--- title: "Easun Power SMP-5KW Off-grid Inverter: Specs & Datasheet | ComparePV" description: "Easun Power SMP-5KW 5 kW off-grid inverter. Specs: 450 V max DC input, 12.0 kg." source: "https://comparepv.com/inverter/easun-power-smp-5kw" updated: 2026-01-19 --- # Easun Power SMP-5KW ## Identity - **Manufacturer:** Easun Power - **Model:** SMP-5KW - **Series:** SMP - **Rated AC power:** 5 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 | - | 2 | | | | Max DC input voltage | 450 V | 600 V | Weak - bottom 6% | 299 | | Weight per kW | 2.4 | 3.3 | Strong - top 23% | 83 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 5 kW - **Max apparent power:** 10.40 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V ### PV input - **Max DC input power:** 5.00 kW - **Max DC voltage:** 450 V - **MPPT voltage range:** 120 to 430 V ### Efficiency - **Max efficiency:** 95.0 % ### Battery - **Battery port:** Yes - **Max charge current:** 80.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 456 × 303 × 147 mm - **Weight:** 12.0 kg - **Operating temperature:** -10 to 50 °C - **Max humidity:** 95 % ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** USB, RS232, RS485, Dry-contact, BMS interface, WiFi (built-in; app required) ### Pros - **The all-in-one design reduces installation costs.** - The SMP series combines a sinusoidal inverter, an MPPT charge controller, and a battery charger into a single unit. This eliminates the need to purchase and wire a separate charge controller, which, in a typical 5 kW off-grid installation, reduces component and labor costs by approximately 300-600 zł compared to modular systems (e.g., Victron MultiPlus + SmartSolar). - **MPPT tracking performance exceeding the market average** - In an independent comparative test (diysolarforum.com), the SMP 5KW model generated 12% more energy in a day than Growatt and 6% more than Victron under similar weather conditions. It also demonstrated a faster start time (6:12 vs 6:30 Victron and 6:45 Growatt). The technical documentation indicates a tracker efficiency of >99%, with a DC input range of 120-500 V. - **Scalable to 9 units simultaneously** - The option to parallel up to 9 SMP inverters (with an optional communication kit) allows for the creation of off-grid systems up to 45 kVA without the need to replace the inverter when expanding the installation - this is a significant advantage over the Chinese all-in-one segment, where parallel operation is rarely available at a premium price. - **WiFi + BMS integration as a standard** - Remote monitoring via WiFi with parameter viewing in a mobile app, and communication with BMS (compatible with lithium and LiFePO4 batteries), are standard features available in the SMP series without additional costs. In contrast, competing brands (e.g., Studer, Victron) charge separately for communication modules, typically ranging from 200 to 500 zł. - **A European magazine in Poland and Germany** - Easun Power maintains its own warehouses in Poland and Germany (verified on easunpower.com), which reduces delivery times to 3-7 business days and eliminates the risk of import duties for customers in the EU - a significant advantage over brands that only sell from China (e.g., PowMr, MPPSolar). ### Cons - **Low reliability of after-sales support** - Multiple documented cases on Trustpilot (2024) and diysolarforum.com: no service response for over a month, charging fees for defective replacement parts (~$35 for a replacement screen), ceasing communication during an active warranty claim. One user reported 3 consecutive defective units from 10 purchases. Lack of an authorized service network in Poland. - **High power consumption in standby mode** - The SMX II model, with a power output of 5.6 kW, consumes approximately 50 W in standby mode (≈1,200 Wh/day), which, in off-grid systems with limited winter production (e.g., in Poland, December-January), could result in a daily battery discharge of 10-15% of a 100 Ah/48 V battery's capacity. The Victron Quattro 5 kVA model consumes approximately 25 W. - **Instances of failures occurring shortly after operation** - On DIY forums (diysolarforum.com, elektroda.pl), failures were reported in SML/SMX series models after 3-6 months of operation (requiring daily restarts, sudden inverter shutdowns). Easun Power does not manufacture its own components - the level of quality control is limited, and clones bearing the Easun brand are circulating on the market, which makes it difficult to assess the actual reliability of the SMP series. ## About this series The Easun Power SMP inverter series are off-grid solutions designed for the independent operation of PV installations in homes, on plots, on farms, and anywhere reliable power matters, especially during grid outages. These are all-in-one constructions combining a sinusoidal inverter with a battery charger and an MPPT regulator, simplifying installation and making cabling more organized. The use of MPPT allows for better utilization of module yields under real-world conditions - such as partial shading, different roof orientations, or uneven sunlight exposure. High European efficiency means the inverter operates effectively not only under ideal conditions but primarily under the typical load ranges found in Poland, translating to more useful energy throughout the year. Depending on the version, the series offers convenient monitoring via WiFi and remote parameter viewing in an app, as well as communication for integration with BMS, facilitating cooperation with energy storage systems. This is an excellent choice for users seeking stable performance, user-friendly operation, and practical safety features, especially in residential and small commercial projects. ## Questions ### Is the Easun Power SMP series still available for sale? The Easun Power SMP series has been discontinued and is no longer actively available for regular distribution. While individual units may still be found at some distributors as stock items, it is advisable to confirm the availability of spare parts and service support before making a purchase. If you are looking for similar options, consider newer Easun Power series that offer comparable specifications. ### Can the Easun Power SMP inverter operate without being connected to the electrical grid? Yes, the SMP series is an off-grid solution specifically designed for operation without access to the electrical grid. The inverter manages the energy from the PV panels, charges the batteries via a built-in MPPT controller, and powers loads with a clean sine wave. It is suitable for use on properties, farms, and vacation homes where connecting to the grid is not cost-effective or impossible. ### What warranty does the Easun Power SMP inverter come with? The standard manufacturer's warranty for SMP series inverters is 12 months. When purchasing through intermediaries or foreign platforms, warranty terms may vary, so it is advisable to confirm the service procedures with a specific vendor before making a purchase. Due to the discontinuation of production for this series, the availability of spare parts after the warranty period may be limited. ### Which batteries are compatible with the Easun Power SMP inverter? The SMP series inverters support popular battery types, including lead-acid AGM and gel batteries, as well as lithium-ion LiFePO4 batteries. Communication with the BMS (battery management system) enables safe operation with modern energy storage systems based on lithium chemistry. The specific voltages and charging currents of the batteries depend on the chosen model within the series, so it is important to check the specifications of the specific unit before selecting a battery. ### Can Easun Power SMP inverters be monitored remotely via a mobile phone? Selected versions of the SMP series feature an integrated Wi-Fi module that allows you to monitor operating parameters in a mobile app. You can check the power generated by the panels, battery charge status, and current load without leaving your home. However, not all models in the series have this feature from the factory, so it is important to verify whether a specific version includes wireless communication before purchasing. ### What distinguishes the MPPT controller in the SMP series from a traditional PWM controller? The MPPT (Maximum Power Point Tracking) controller within the SMP inverter continuously searches for the optimal power point of the PV panels and adjusts the operating parameters accordingly, resulting in a 20-30% higher energy yield compared to cheaper PWM controllers. This difference is particularly noticeable in partially shaded conditions, at low temperatures, or when the panels operate at voltages significantly higher than the battery voltage. In Polish climate conditions, MPPT is simply more cost-effective throughout the year. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/SMP-b375a998f508.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt SPF 5000 ES](https://comparepv.com/inverter/growatt-spf-5000-es) | 5 kW | | 1 | 12.0 kg | Similar on paper | | [Growatt SPF 5000T DVM](https://comparepv.com/inverter/growatt-spf-5000t-dvm) | 5 kW | | | 47.0 kg | 35.0 kg heavier | | [Growatt SPF 5000T DVM-MPV](https://comparepv.com/inverter/growatt-spf-5000t-dvm-mpv) | 5 kW | | | 47.0 kg | 35.0 kg heavier | | [Growatt SPF 3500 ES Lite](https://comparepv.com/inverter/growatt-spf-3500-es-lite) | 5 kW | | 1 | 9.2 kg | 2.8 kg lighter | | [Growatt SPF 5000 ES Lite](https://comparepv.com/inverter/growatt-spf-5000-es-lite) | 5 kW | | 1 | 9.8 kg | 2.2 kg lighter | | [Growatt SPF 5000TL HVM](https://comparepv.com/inverter/growatt-spf-5000tl-hvm) | 5 kW | | | 11.5 kg | Similar on paper | | [Ginlong Solis S6-EO1P5K-48](https://comparepv.com/inverter/ginlong-solis-s6-eo1p5k-48) | 5 kW | | 1 | 13.8 kg | 1.8 kg heavier | | [Easun Power ISolar MLV-5KW-U](https://comparepv.com/inverter/easun-power-isolar-mlv-5kw-u) | 5 kW | | | | Similar on paper | --- Source: https://comparepv.com/inverter/easun-power-smp-5kw