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Easun Power ISolar SMV 1K-12
Easun Power

ISolar SMV 1K-12

1 kW Off-grid Single-phase Battery-ready
Compare with closest alternative Datasheet PDF
Rated AC (kW)
1.00
Weak · bottom 9%
Euro eff. (%)
-
Not published
MPPT
-
Not published
Max DC (V)
145
Weak · bottom 6%
Weight (kg)
5.1
Typical · median 9.1 kg
Warranty (yrs)
-
Not published

The Easun Power ISolar V series inverters offer a practical solution for installations prioritizing operational flexibility - both in off-grid mode and in hybrid systems with the grid or generator. Depending on the unit version, they can even operate without batteries initially, simplifying system startup and allowing for energy storage expansion later. The application of double MPPT provides tangible benefits for uneven rooftops or partial shading - each string can be independently optimized, stabilizing energy yield throughout the day.

High European efficiency means lower losses under typical climatic conditions in Poland, resulting in better annual energy production. Additionally, comprehensive communication features are available: Wi-Fi and service interfaces like RS485 enable remote monitoring of parameters and diagnostics via an app or computer. This series is also compatible with modern lithium batteries and BMS, supporting safe charging and discharging. It's worth noting the protection features (overload, overheating, short circuit) and warranty conditions, which depend on the purchasing channel. This is an excellent choice for homes, farms, or small businesses prioritizing energy independence and control over self-consumption.

Ranking

164 inverters up to 3 kW
Metric This inverter Median Position in class Rank in class
European efficiency - 97.0% Not published -
MPPT trackers - 1 Not published -
Max DC input voltage 145 V 550 V Weak · bottom 6% 122
Weight per kW 5.1 4.0 Typical 109
Warranty - 5 yrs Not published -
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Specifications

Open datasheet PDF
Rated AC power 1 kW Continuous output
Max apparent power 1.00 kVA
Phases Single-phase
Nominal AC voltage 230 V 170-280 VAC (For Personal Computers); 90-280 VAC (For Home Appliances)
Max DC input power 0.50 kW DC/AC ratio 0.50
Max DC voltage 145 V Caps the string length
MPPT voltage range 17 to 115 V
Battery port Yes
Battery voltage 12 VDC / 24 VDC / 48 VDC (model-dependent)
Max charge current 120.0 A
Grid-forming Yes
Dimensions 320 × 225 × 88 mm Height × width × depth
Weight 5.1 kg 5.1 kg per kW
Operating temperature -10 to 50 °C
Max humidity 95 %
Interfaces Display
Protocols USBRS232

Pros and cons

5 positive · 4 caution
What owners get
Dual MPPT - independent string optimization

Two independent MPPT trackers allow for connecting strings with different orientations or under partial shading without mutual losses. In typical Polish roof conditions (south-facing or east-facing), this can translate into a 5-10% higher annual energy yield compared to single-tracking inverters.

Working off-grid without a battery

This series allows for the installation and powering of receivers directly from PV panels even before batteries are purchased, which lowers the initial investment required for off-grid systems. For small farms or households, this means the possibility of gradually expanding the energy storage capacity.

Hybrid mode: grid/aggregate/off-grid

The ability to use three power sources (grid, generator, and PV + battery) in a single device reduces installation costs compared to a traditional on-grid inverter + UPS + charger controller setup. This is a significant advantage when designing backup power systems for homes or small businesses.

WiFi + RS485 Communication

Built-in Wi-Fi enables remote monitoring and configuration via a mobile app without the need for additional accessories (unlike, for example, Growatt, where a Wi-Fi communicator is a paid add-on). RS485 allows integration with external SCADA or battery BMS systems.

LiFePO4 support with BMS protocol

Native communication with LiFePO4 (lithium iron phosphate) batteries ensures safe management of charging and discharging parameters, reducing the risk of battery damage. This is particularly important for 48 V, 100-200 Ah batteries, which are commonly used in microgrid installations.

Trade-offs
The product line has been discontinued.

ISolar V II and ISolar V III are marked as "no longer manufactured" in the ENF Solar database. This means that spare parts are limited in availability, there is a risk of firmware updates no longer being available, and there may be difficulties with post-warranty service, especially in Poland, where there are only a few authorized Easun service centers.

Poor after-sales service from the manufacturer

Reviews on Trustpilot (2024-2025) highlight significant issues with the warranty service: months-long waiting times for replacements, return of defective parts, and a lack of response from the support department. For critical installations (e.g., home power supply, central heating system), a malfunctioning RMA process represents a real operational risk.

High power consumption (~50 W)

Users of similar Easun models (as reported in the DIY Solar Power Forum, 2023) indicate a zero-power consumption of approximately 50 W, which is higher than that of mid-range models (e.g., Deye SUN-5K-SG03LP1 - approximately 35 W, Victron MultiPlus-II - approximately 20 W). In a system operating for 8760 hours per year, this difference of 15 W represents a loss of approximately 130 kWh per year.

Unstable MPPT performance under low sunlight conditions

Problems reported on forums (elektroda.pl, DIY Solar Forum) with MPPT tracker performance below ~150W of PV input can lead to suboptimal battery charging under cloudy conditions - which are typical in the Polish climate during spring and autumn. Brands like Victron and SMA exhibit more stable performance under these conditions.

Inverter Power Euro eff. MPPT Weight Difference
Easun Power ISolar SMV 1K-12 1 kW - - 5.1 kg You are here
ISolar MLVZ 1KW-12V 1 kW - - 10.5 kg 5.4 kg heavier
ISolar SPV 1K-12 1 kW - - 5.0 kg Similar on paper
ISolar SPR 1K 12V 1 kW - - 4.4 kg Similar on paper
ISolar SPL 1K 0.8 kW - - 5.0 kg -0.2 kW
ISolar MLV 1K 12V 0.8 kW - - 6.8 kg -0.2 kW, 1.7 kg heavier

About the ISolar V series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this model's own.

Can Easun Power ISolar V inverters operate without a connected battery?
Yes, certain versions of the ISolar V series support operation without batteries. This allows users to install and start a photovoltaic system immediately, and to add energy storage later when their budget allows. In this configuration, the inverter draws power directly from the panels or the grid, and a battery can be added without the need to replace the inverter.
What advantages does the dual MPPT in the ISolar V series offer, and does it actually make a significant difference in a typical residential setting?
Dual MPPT means two independent maximum power point trackers (MPPTs). Each string of panels is optimized individually, so if one part of the roof faces west and another faces south, or if a chimney shades one row of panels, the second string will still operate at full efficiency. In practice, this translates to higher daily energy yield on multi-faceted or partially shaded roofs.
What types of lithium batteries are compatible with the Easun Power ISolar V?
The ISolar V series is designed to work with modern LiFePO4 lithium batteries equipped with a BMS that communicates via RS485 or CAN. The device supports popular batteries available on the market, including those from manufacturers such as Pylontech, JK, and Daly. Thanks to communication with the BMS, the inverter automatically adjusts charging and discharging currents, which extends the battery's lifespan and ensures safe operation.
How can I remotely monitor the performance of the Easun Power ISolar V inverters?
The ISolar V series is equipped with a WiFi module that allows you to monitor operating parameters via the SmartESS mobile app. Once connected to your home network, you can track energy production, battery charge level, and operating mode in real-time. Installers have access to an RS485 interface, which enables integration with energy management systems and professional on-site diagnostics.
What warranty does the Easun Power ISolar V series inverter cover, and what factors determine its length?
The warranty period for the ISolar V series depends on the purchase channel. When purchasing through an authorized distributor or directly from the manufacturer, the terms may differ from those offered by online marketplaces or unauthorized sellers. Standardly, the manufacturer provides a warranty covering manufacturing defects and proper functioning under normal operating conditions. It is advisable to confirm the warranty terms in writing with the chosen seller before making a purchase.
Is the Easun Power ISolar V series still available for sale?
The ISolar V series has been discontinued by Easun Power and is no longer actively offered in new orders. However, there may still be some remaining stock in distributors' warehouses, but availability is limited. If you are looking for a currently produced hybrid inverter from this manufacturer with similar features, it is worth checking the newer series offered by Easun Power, which replaced the ISolar V model.
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