SKU: BPP900450110
Victron’s Cerbo GX MK2 is an energy system controller and monitor. It includes many automation and customization settings, and it’s possible to access the system remotely as needed.
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Victron's Cerbo GX MK2 System Controller is designed for monitoring and controlling all aspects of a 12V, 24V, or 48V energy system. It's ideal for off-grid, hybrid, and energy storage installations. The Cerbo's many ports enable connection to a variety of Victron and non-Victron products, and the internal software enables detailed customization and automation.
The Cerbo is compact. At only 3.07×6.06×1.89in, it's easy to install in any energy system. This size is especially convenient for small spaces like an RV compartment.
The optional GX Touch provides an easy way to monitor and control the Cerbo. This touch screen device displays real-time information such as battery SOC (State of Charge %), power out to connected loads, and power in from solar panels. The included 6.5ft cable makes it possible to view the Cerbo's information from a convenient location.
For lithium battery systems, the Cerbo is the bridge between the battery's BMS and every other device in the system. It communicates with the BMS over CAN bus (via the BMS-CAN or VE.CAN port, depending on battery brand) and relays real-time charge and discharge limits to the inverter and solar charge controllers. This closed-loop communication means the system responds to actual battery conditions, not just fixed voltage setpoints. If the BMS reduces its charge current limit due to temperature or cell imbalance, the Cerbo passes that instruction to every connected charger within seconds. Victron maintains a compatibility list covering dozens of battery brands including EG4, Pylontech, BYD, Freedomwon, and SimpliPhi.
DVCC (Distributed Voltage and Current Control) is the Cerbo's active management layer. When DVCC is enabled, the Cerbo coordinates charge current across every connected solar controller, inverter/charger, and DC-DC converter as a single system. It distributes the BMS current limit across all charging sources, manages shared voltage and temperature sensing, and compensates for DC loads so that the battery sees the charge current the BMS actually requested. Without a GX device running DVCC, each charger operates independently based on its own programmed settings.
Since the Cerbo can connect to WiFi and Ethernet, it uploads all system information to VRM, Victron's secure remote monitoring portal. VRM is free with no subscription, no monthly fee, and no tiered feature limits. That access is permanent for the life of the system.
VRM shows real-time battery state of charge, temperature, tank levels, and AC input from grid, generator, or other power sources. Historical data is logged and graphable, so you can review system performance over days, weeks, or months. It's also possible to check system alarms and run diagnostics remotely, all critical information for making sound decisions about the energy system. System data is private by default but can be shared with specific people or made public.
Remote Console gives you full GUI access to the Cerbo from any browser, exactly as if you were standing in front of a GX Touch. You can change settings, switch operating modes, adjust input current limits, and monitor live data flows. Remote VEConfigure goes a step further, allowing full inverter configuration file downloads and uploads through VRM. Firmware updates for connected Victron products can also be pushed remotely through VRM without physically touching the equipment.
The Cerbo can automatically start and stop an external generator based on battery state of charge, system load, time of day, or other configurable conditions. For off-grid systems that rely on a backup generator for extended cloudy periods or heavy loads, this turns the Cerbo into an automatic transfer and fuel management tool. The generator control logic runs locally on the Cerbo, so it works even if internet connectivity is temporarily unavailable.
Some of the Cerbo's ports include connections for tank level monitors, temperature sensors, VE.Direct, VE.Can, battery connections, and relays. These connections allow the Cerbo to monitor and control much of the energy system.
Two programmable relays allow for advanced automation and customization. It's possible to program these relays to activate alarms or generators, or for use with pumps, temperature sensors, and more.
No. The Cerbo operates fully without a display. You can monitor and configure the system entirely through VRM in a browser or the VRM app on your phone. The GX Touch is a convenience for local, at-a-glance monitoring, but it's optional.
The Cerbo powers directly from the battery bank. Its input range is 8-70Vdc, so it works on 12V, 24V, and 48V systems without an external power adapter. It ships with a power cable that has M8 ring terminals for direct battery connection.
Yes. All local control functions, DVCC coordination, BMS communication, generator auto-start, relay logic, and the GX Touch display work without any internet connection. Internet is only required for VRM remote access, remote firmware updates, and Remote VEConfigure. If your system is off-grid without connectivity, the Cerbo still does its job as a local system controller.
Yes. The Cerbo communicates over CAN bus with dozens of third-party battery brands. Victron publishes a battery compatibility list that includes EG4, Pylontech, BYD, SimpliPhi, Freedomwon, and many others. The specific CAN port and cable type depend on the battery brand. Some use the BMS-CAN port with a Type A cable, others use VE.CAN. Check Victron's compatibility list for your specific battery.
The MK2 replaced the original Cerbo GX. The key hardware change is that VE.CAN 1 on the MK2 is galvanically isolated, which prevents ground loop issues when connecting CAN bus devices on a different ground reference. The MK2 also added a second independent CAN bus (VE.CAN 2), so you can run VE.CAN devices on one bus and a BMS on the other simultaneously without conflicts. Current Connected stocks the MK2.
The Cerbo has 3 VE.Direct ports. If your system has more VE.Direct devices (additional solar controllers or a SmartShunt), you can add them through a USB hub connected to the Cerbo's USB port. Victron supports standard USB hubs for expanding VE.Direct capacity using VE.Direct to USB adapter cables.
No. VRM is free for the life of the system with no subscription, no monthly fee, and no feature tiers. Every Cerbo GX gets full access to remote monitoring, Remote Console, historical data logging, alarm notifications, and Remote VEConfigure at no additional cost.
Yes. Victron's VRM app is available for both iOS and Android. It provides the same remote monitoring, alarm notifications, and system overview available through VRM in a browser. If your system has a GX Touch, you can also access Remote Console through the app for full GUI control.
Yes. ESS mode, which manages grid-tied self-consumption and time-of-use optimization, requires a GX device. The Cerbo GX is the most common choice for this. Without it, the inverter cannot manage grid interaction intelligently.
he Cerbo logs system data internally and uploads it to VRM when internet is available. The MicroSD card slot provides expanded local storage for data logging, which is useful for systems with intermittent connectivity. When the Cerbo regains internet, it backfills the stored data to VRM automatically.
I was hesitant to buy the Cerbo GX. I am glad I did. Original thinking was, why do I need this? I'll just use the Victron Connect App. That said, Batteries and Victron Eco-sSystem is in the workshop. Nice to see everything from your bed or kitchen table without going to the shop. Easy to Firmware updates as well. Higly Recommend this piece of gear!!
Awesome way to control your Victron devices and add in some relays and gauge inputs. I am able to trend my 500 gal lp tank level through the online VRM using the existing tank gauge with a 0-90 ohm add on. Works great
