You have no items in the cart Shop now
You have no items in the quote request cart Shop now

Votronic SR140 Duo Dig charge regulator

£79.99 (Incl. VAT £13.33)
In stock

Solar charger

Upgrade your motorhome's energy efficiency with our advanced Solar Charger featuring MPPT technology. Harness the maximum power from your solar panels, ensuring faster and more efficient charging. This intelligent charger optimizes energy conversion, allowing you to enjoy longer off-grid adventures with clean, reliable power. Keep your batteries charged and your motorhome ready for your next journey with our MPPT Solar Charger."

This description highlights the benefits of using MPPT technology for a motorhome solar charger, such as improved energy conversion and longer off-grid capabilities.


For campers, caravans and boats. The solar controller is a special development for use in campers and caravans, and it is suitable for all types and makes of lead batteries (also for acid, GEL/dryfit, AGM/fleece batteries, as well as LiFePO4 batteries). Optimum charging is ensured by an intelligent microprocessor control with characteristic lines IU1oU2. Working fully automatically and maintenance-free, the solar controller offers the following functions:

  • Charging port board battery I, depending on the type of battery (lead or LiFePO4), 3 or 5 charging programs selectable.
  • Charging Port Starter Battery II: Separate auxiliary charging port with reduced charging current (12 V (0.8 A or 1.5 A) for support charging and trickle charging of the vehicle’s starter battery with overcharge protection in case of extended stop periods.
  • The charging voltage being free from peaks is controlled in such a way, that any overcharging of the batteries is excluded.
  • Two Battery Charging Ports: Automatic charging of the main battery or board battery (Board I): Support charging and trickle charging of the vehicle's starter battery (Start II) with overcharge protection.
  • Unattended Charging: Standard protection against back discharge of battery (in case of insufficient solar power (such as at twilight, at night etc.) and against overload and overheating.
  • Floating Operation: Observation of the characteristic lines of charging, even with simultaneous operation of consumers being connected to the battery.
  • Overcharge protection: Reduction of the charging current of the battery in case of excessive solar power and full battery. Immediate recharging in case of power consumption to ensure always the best possible charging state of the battery.
  • Characteristic Line of Charging "IU1oU2": A defined charging boost (U1) avoids harmful acid accumulation and provides compensation charge to the individual battery cells. After that, automatic trickle charging (U2).
  • On-board Mains Suppression Filter: Integrated on-board mains suppression filter ensures unproblematic parallel operation of the controller with other charging sources, wind- and petrol-driven generators, mains supply chargers, dynamos etc. at one battery.
  • Connection for Temperature Sensor: Automatic adaptation of the charging voltage to the battery temperature. In case of low outside temperatures, full charging of the weaker battery is improved, and in case of summery temperatures unnecessary battery gassing will be avoided.
    This is highly recommended, if the battery is exposed to strong variations in temperature, such as in the motor compartment.
  • Charging Cable Compensation: Automatic compensation of voltage losses on the charging cables.
  • Measurement Output for EBL (Electroblock of the Vehicle): Allows convenient application of the (solar) current display being installed in the electroblock for supervision of the solar system.
    Please check in advance the compatibility of your Schaudt Electrobloc (EBL) and the corresponding control panel, because we are not able to give any warrenty for this.
  • Terminal „AES“ (only SR 330 Duo Dig. and SR 530 Duo Dig.): Automatic commutation of ELECTROLUX / DOMETIC refrigerators with “AES” (Automatic Energy Selector) from gas operation to 12 V operation in case of excess solar power.
  • Ready for connection of the VOTRONIC Solar Display LCD-Solar Computer S for optimum control of the system.
  • Indicators for operating state "Full", "> 80%", "Charging", "StandBy" and "Low Voltage"
  • Control output EBL, prepared for “Elektroblock” with solar current display, cable set, Art. 2007, required
SKU 30012