Victron SmartSolar MPPT 75/15 Solar Charge Controller

Overview

The Victron SmartSolar MPPT 75/15 Solar Charge Controller is a simple entry solar controller for smaller camper and self-build roof solar systems. It is a strong fit for campervans, self-build leisure systems and modest off-grid installs using smaller solar arrays. With built-in Bluetooth, VE.Direct connectivity and Victron’s proven charging logic, it is a sensible entry point for systems that still deserve to be done properly.

Why this product makes sense

The SmartSolar MPPT 75/15 is a good choice where the solar side of the system is relatively modest, but the owner still wants decent charging performance, sensible battery care and proper visibility of what the controller is doing. It gives you the core benefits of Victron’s SmartSolar range without pushing the system into a larger controller than the job actually needs.

It is particularly useful in smaller campervan and leisure installs where roof space is limited, array size is sensible rather than heroic, and the aim is to charge the battery properly rather than just bolt on a panel and hope for the best. The MPPT algorithm is designed to keep harvesting effectively even when light conditions are poor or change quickly, which is exactly the sort of real-world behaviour smaller UK vehicle systems tend to see rather than permanent Mediterranean perfection.

Built-in Bluetooth also matters more than it first appears. Being able to configure, monitor and check charging behaviour through VictronConnect makes setup easier, reduces guesswork and gives the user proper visibility of what the controller is actually doing. For a small system, that is often the difference between something that merely exists and something that is actually understood.

Typical applications

• Smaller campervan roof solar systems charging a 12V leisure battery bank.
• Self-build van, caravan or day-van electrical systems where modest solar support is enough.
• Small off-grid 12V or 24V battery systems where simple, efficient solar charging is needed.
• Installations where app-based setup and monitoring are preferred over a more basic controller with no visibility.

Key features of the Victron SmartSolar MPPT 75/15

• 12V / 24V battery voltage auto-selection.
• 15A rated charge current.
• Maximum PV open-circuit voltage of 75V.
• Built-in Bluetooth Smart for setup, monitoring and updates through VictronConnect.
• VE.Direct port for wired integration with GX devices, PCs and other Victron equipment.
• Load output to help prevent excessive battery discharge.
• Adaptive charging support for lithium, AGM, gel and flooded batteries.
• Peak conversion efficiency up to 98% with natural cooling.

Key specifications

• Manufacturer Part Number: SCC075015060R
• Battery voltage: 12V / 24V auto select
• Rated charge current: 15A
• Maximum PV open-circuit voltage: 75V
• Nominal PV power on 12V systems: 220W
• Nominal PV power on 24V systems: 440W
• Peak efficiency: 98%
• Connectivity: Bluetooth Smart, VE.Direct
• Load output: Yes

Installation and integration notes

The SmartSolar MPPT 75/15 is best suited to smaller arrays where the controller’s 75V PV input limit and 15A output rating are a sensible match for the system. In practical terms, it is a good fit where the goal is a tidy, modest solar install rather than a larger array that really wants stepping up to a bigger controller.

Before specifying or fitting it, check the panel open-circuit voltage against the 75V limit, especially in colder conditions where panel voltage rises. Also check that the planned solar power and battery voltage align sensibly with the controller’s rating, rather than assuming any panel marked “12V” will automatically behave itself.

Bluetooth setup through VictronConnect makes first configuration straightforward, and the controller can be set up for different battery chemistries including lithium and common lead-acid types. If the wider system is part of a Victron ecosystem, the VE.Direct connection also gives a clean path into GX-based monitoring and control.

The built-in load output can be useful in smaller systems where low-voltage disconnect behaviour is needed, but system design still matters. If the install includes higher loads or a broader battery protection strategy, it is worth checking whether the controller’s load output is the right place to manage that job or whether a separate battery protection device makes more sense.

If you are still deciding which controller size suits your panel and battery combination, Victron’s official MPPT Calculator is a useful starting point for checking compatible SmartSolar models.

Resources

For the official product page, manual and technical data, see the Resources tab on this page. These documents are useful for product selection, installation planning, battery profile setup and checking PV voltage, current and system compatibility before purchase or installation.