Victron Energy – Efficient system solutions for your independent power supply
Whether in a motorhome, on a boat or in an off-grid solar system – Victron Energy components have stood for the highest quality and well-thought-out technology for decades. As a leading specialist for mobile and stationary power supply, Electronicx supplies customers throughout Germany and beyond with a comprehensive Victron range. From intelligent MPPT charge controllers and combined inverter/chargers from the MultiPlus series to precise battery monitors: we support you with selection, system design and installation.
In this guide you will learn which Victron products are suitable for your application, which technical values really matter and how to optimally match the components to one another. All information is based on manufacturer data from the 2024/2025 series and the practical experience of our technical team.
MPPT solar charge controllers: Maximum Power Point Tracking for highly efficient charging
Victron MPPT charge controllers harvest up to 30% more energy from your solar modules than conventional PWM controllers – regardless of changing irradiance or temperature. They continuously adjust the voltage-current ratio so that the panel always operates at its maximum power point.
SmartSolar vs. BlueSolar – what is the difference?
Both series use identical MPPT control and ultra-fast algorithms. The decisive added value of the SmartSolar models lies in the integrated Bluetooth module: via the free VictronConnect app you can follow charging curves live, read out historical yield data and adjust the parameters for AGM, gel or LiFePO₄ batteries directly. On BlueSolar controllers, the Bluetooth interface can optionally be retrofitted via an external VE.Direct dongle. In terms of price, the entry point for a SmartSolar MPPT 75/15 is around €95–110, while the identically constructed BlueSolar is about 20% cheaper.
Model overview of selected MPPT charge controllers
| Model | Max. PV open-circuit voltage | Max. charge current | System voltage |
|---|---|---|---|
| SmartSolar MPPT 75/15 | 75 V | 15 A | 12/24 V |
| SmartSolar MPPT 100/30 | 100 V | 30 A | 12/24 V |
| SmartSolar MPPT 150/35 | 150 V | 35 A | 12/24/48 V |
| SmartSolar MPPT 150/60-Tr | 150 V | 60 A | 12/24/48 V |
| SmartSolar MPPT 250/100 | 250 V | 100 A | 12/24/48 V |
The number in the model name indicates the maximum permissible PV open-circuit voltage (V oc) and the maximum charge current – for example 75 V / 15 A. Pay particular attention to the voltage reserve at cold temperatures: the open-circuit voltage of the modules rises as the temperature falls. A 200 W solar module with 24 V nominal voltage and 45 V open-circuit voltage can only be operated safely on a 75/15 if the temperature correction is taken into account. Our team will be happy to help you with the sizing.
MultiPlus and MultiPlus-II – inverter, charger and PowerAssist in one device
The MultiPlus series is the heart of many off-grid and hybrid systems. It combines a pure sine wave inverter with a powerful battery charger and a lightning-fast transfer switch (ATS). The unique PowerAssist mode prevents shore power or generator fuses from tripping by briefly blending in energy from the battery during high consumption – an indispensable feature on campsites with weak mains connections.
Key technical data of the most popular MultiPlus models
| Type designation | Continuous output (VA/W) | Peak output | Max. charge current | Battery voltage |
|---|---|---|---|---|
| MultiPlus 12/800/35 | 800 VA / 700 W | 1.600 W | 35 A | 12 V |
| MultiPlus 12/1200/50 | 1,200 VA / 1,000 W | 2.400 W | 50 A | 12 V |
| MultiPlus 12/2000/80 | 2,000 VA / 1,600 W | 4.000 W | 80 A | 12 V |
| MultiPlus 12/3000/120 | 3,000 VA / 2,400 W | 6.000 W | 120 A | 12 V |
| MultiPlus-II 48/5000/70 | 5,000 VA / 4,000 W | 8.800 W | 70 A | 48 V |
All models are designed for the common battery technologies – from AGM and gel to modern LiFePO₄ batteries. The configurable charging curves and temperature sensor inputs ensure material-friendly full charging. Particularly with 12 V systems at outputs of 1,200 VA and above, sufficient battery capacity must be ensured: for a MultiPlus 12/2000/80, a 100 Ah AGM battery is recommended as a minimum, but better still a 200 Ah bank, in order to buffer the high starting currents on a sustained basis.
The MultiPlus-II models extend the functionality with integrated anti-islanding protection and a second AC output that prioritises the supply of critical loads in the event of a mains failure. This makes use in modern hybrid storage systems even more flexible.
BMV battery monitors: complete transparency about the state of charge of your batteries
Without precise monitoring, voltage measurements often remain misleading. Victron's BMV series (Battery Monitor Victron) measures current, voltage and temperature and calculates the actual state of charge (SOC) as well as the remaining operating time in real time. This lets you see at a glance when a float charge is necessary or whether deep discharge is imminent. All BMV models are based on a powerful shunt that is looped into the negative circuit of the battery.
- BMV-700: Basic model with a large display, measures voltage, current, Ah consumption and SOC. Perfect for simple monitoring tasks.
- BMV-702: Additional input for a second battery (starter or bow battery) and integrated temperature monitoring. Ideal for vehicles with separate on-board systems.
- BMV-712 Smart: Like the BMV-702, but with integrated Bluetooth. The VictronConnect app provides historical data, alarms and an intuitive real-time view on your smartphone. In terms of price, the BMV-712 is around €130–150.
- SmartShunt: A space-saving variant with Bluetooth that is screwed directly onto the battery's negative terminal. All values are visualised exclusively via the app. Particularly space-saving and cost-efficient (approx. €90–120).
For an accurate SOC value, the battery's nominal capacity (e.g. 100 Ah at C20) and the Peukert exponent must be set correctly. For AGM batteries, the Peukert exponent is typically 1.25, while for LiFePO₄ it is almost 1.05. Our technical comparison of AGM, gel, LiFePO₄ helps you find the right parameters for your battery.
Blue Smart IP65 chargers: adaptive charging for all battery technologies
If no permanently installed inverter is required or an external charging solution is wanted, the Blue Smart IP65 chargers are the first choice. They charge 12 V and 24 V batteries with up to 30 A charging current and are protected against dust and spray water – permanent installation in the engine compartment is also possible. The adaptive charging algorithm recognises the battery type independently and applies an optimised IUoU characteristic.
Popular Blue Smart models and their areas of use
The compact Blue Smart IP65 12/10 (10 A), with a charging current of maximum 10 A, is ideal for AGM motorcycle or car batteries up to around 60 Ah. Especially with AGM batteries with high internal resistance, the gentle desulphation mode helps to extend the service life. The top model 12/30 (30 A) is sufficient even for 200 Ah banks and is preferably used in stationary solar systems.
Bluetooth is already integrated in every Blue Smart, so you can view the charging curve, the current current and the complete history on your smartphone. A clear status LED also provides information about the current charging phase.
Typical system combinations – how the Victron components work together
The strength of Victron Energy lies in the seamless networking of all devices via VE.Direct interfaces and the GX system (e.g. Cerbo GX).
Basic solar system for campers (12 V, 100 Ah AGM)
Solar module(s) 200 Wp → SmartSolar MPPT 75/15 → AGM battery 100 Ah (e.g. a high-current-resistant AGM) → consumers via fuse block. Optionally, you can expand the system with a BMV-712, which warns you in good time before deep discharge and automatically synchronises the charging cycles. All components including suitable cable cross-sections are available on request as a package.
Self-sufficient 230 V system in an allotment (12 V, LiFePO₄ 200 Ah)
This combination is suitable if you want to operate devices such as cool boxes, notebooks or tools with 230 V: solar panels 400 Wp → SmartSolar MPPT 100/30 → LiFePO₄ battery 200 Ah → MultiPlus 12/1200/50. The MultiPlus charges the battery when there is excess solar power and converts the stored energy into 230 V. With a deep discharge of up to 95% (for LiFePO₄), around 190 Ah of usable capacity is available – enough for several days of bad weather.
Shipping, advice and contact – your partner Electronicx in Cleebronn
Electronicx GmbH, based in Cleebronn (Baden-Württemberg), has been a reliable point of contact for Victron Energy products for years. Our warehouse in the Hindenburgstr. Orders received by 14:00 usually leave our premises the same day.
For queries, technical design advice or custom component packages, you can reach our team by telephone on +49 7135 7194106 or by e-mail at [email protected]. We help you configure your Victron system and ensure that every component matches your intended use exactly.
Frequently asked questions (FAQ) about Victron Energy products
Which MPPT controller do I need for a 200 W solar module on a 12 V battery?
For a typical 200 W module with 24 V nominal voltage and approx. 45 V open-circuit voltage, a SmartSolar MPPT 75/15 is sufficient, provided the battery may be charged at around 15 A (suitable for 100 Ah AGM or larger). Make sure that the open-circuit voltage remains below 75 V even in cold conditions. If the system is to be expandable later, choose the 100/30.
Is a Victron MultiPlus also suitable for AGM batteries?
Yes, all MultiPlus models support adaptive and configurable charging for AGM, gel, flooded batteries and LiFePO₄. Using the DIP switches or the VEConfigure software, you can set the exact charging characteristic. AGM batteries in particular benefit from the precise temperature compensation that the MultiPlus provides when an optional temperature sensor is connected.
How do I connect the BMV‑712 to my smartphone?
Download the free VictronConnect app from the Google Play Store or the Apple App Store. Switch on Bluetooth and start the app – the BMV‑712 is detected automatically. After pairing, you can view all parameters and read out historical data. A separate SIM card or gateway is not required.
Can I also use a Victron Blue Smart charger for maintenance charging over the winter?
Absolutely. In storage mode, the charger keeps the battery at 100 % with minimal charging voltage and automatically starts a short maintenance charge cycle when the voltage drops. This protects AGM and gel batteries in particular from sulphation. We recommend this method for all seasonally used vehicles. Further tips can be found in our 12 V battery charging guide.
What does the specification “12/3000/120” mean on a MultiPlus?
The three numbers indicate battery voltage (12 V), maximum continuous inverter power (3,000 VA) and maximum charging current of the integrated charger (120 A). The peak power is 6,000 W, roughly twice the nominal power, and is provided for short inrush currents (e.g. pumps).
Can I operate several identical Victron MPPT controllers in parallel on the same battery?
Yes, Victron MPPT charge controllers synchronise automatically via the battery voltage, provided the charging voltages are configured identically. Each device operates independently; manual networking is not necessary. Just ensure a sufficient cable cross-section and a common reference ground.
Are Victron products protected against dust and moisture?
Many devices such as the Blue Smart IP65 chargers or the MPPT charge controllers have protected electronics with protection classes up to IP22 (MPPT) or IP65 (charger). Nevertheless, we recommend placing the components in dry, ventilated installation spaces wherever possible to achieve maximum service life.
How do I determine the correct Peukert exponent for my battery in the BMV?
For AGM batteries, the Peukert exponent is usually 1.25, for GEL 1.20 and for LiFePO₄ close to 1.05. You can find the exact value in the data sheet from your battery manufacturer. An incorrect setting leads to an inaccurate SOC display, which deviates significantly at partial charges. In our AGM battery explained article we go into this topic in more depth.