12V solar panels charging kits for caravans, motorhomes, boats, yachts, marine

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I've got light and don't have to pay electric, fantastic! It gives out great light.

Sam (Sible Hedingham, Essex, UK) - Sept 2016

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DC to DC Battery Chargers

Votronic VBCS triple charger: 60A DC-to-DC battery charger, 40A mains charger, 430W MPPT solar charger

Votronic VBCS triple charger: 60A DC-to-DC battery charger, 40A mains charger, 430W MPPT solar charger
Votronic VBCS triple charger: 60A DC-to-DC battery charger, 40A mains charger, 430W MPPT solar charger

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This Votronic 60A 12V automatic triple charger is an intelligent combination of a powerful 60A battery-to-battery charger, a wide-input 40A mains charger, and a high-efficiency 430W MPPT solar controller – all in one single unit.

The Votronic Triple Charger allows for easy and convenient setup of complex systems where the batteries can be charged from up to three different power sources. This charger is ideal for motor vehicles and boats with 2 different batteries or battery banks (domestic or leisure batteries and starter battery) as it can charge them independently using either solar or mains power, and can also keep the leisure battery topped up while the motor is charging the starter battery.

This product comes from Votronic, the leading German manufacturer of solar and vehicle electronics. German design, engineering and manufacturing ensure unrivalled quality and reliability.

The triple charger is comprised of the following 3 components:

1) 60A Battery-to-battery charger:

  • Easily create a dual battery system: When one 12V battery or battery bank is being charged from another source (such as a vehicle alternator) this unit will enable safe charging of a second 12V battery or battery bank from the same source.
  • Powerful DC charging: the second battery is charged at up to 60A, efficiently sharing an external charging source between the two batteries.


2) 40A Mains battery charger:

  • Powerful charging: charges one battery at up to 40A while simultaneously trickle charging a second battery.
  • Wide AC input range: for safe use with no settings changes on many different generators and any mains grid worldwide.
  • Compatible with other charging sources: thanks to the inbuilt mains suppression filter, the batteries may be charged from additional power sources, for example alternators, wind / petrol generators etc. whilst remaining connected to the mains.
  • Dead battery recovery function: for optimum charging of completely drained batteries, the charger offers a gentle preliminary charging stage, followed by a more powerful charging stage.
  • Power pack function: supply of power to charger output with no battery connected (e.g. battery replacement).
  • AC Power limit switch: for applications where the mains power may be limited, e.g. if using a generator, this switch can reduce the power drawn from mains (to a 'medium' or 'low' charging rate) in order to prevent overload or shutdown of the AC power source.


3) 430W Solar charge controller:

  • Efficient MPPT solar charge controller: the controller specifically pinpoints the maximum power voltage point of the solar panel(s) as it varies depending on sunlight exposure and temperature. This ensures the maximum output from the solar panels and shorter charging times.
  • Up to 430W solar power: connect up to 36V or up to 26A of solar power to charge the leisure battery.
  • Trickle charge: keeps the second battery topped up to maintain charge during periods of inactivity.


Additional features

  • Suitable for many different systems: the three charging sources can be used in any combination: individually, with any two, or all three.
  • Safe unattended charging: the unit features inbuilt safety functions (protection against overload, overheating, overvoltage, short circuit, incorrect polarization and reverse discharge of the battery), which allow the charger to be left permanently connected to the battery for unattended automatic charging. The unit also features an integrated safety switch for added protection. Unlike many other mains chargers, the charging voltage is also free from peaks which offers smooth uninterrupted charging.
  • Continued charging during battery use: the charger will continue to operate at full power while energy is drawn from the battery during use. The unit will maintain the charge if the battery is already at full capacity.
  • 'Silent Run' function: for quieter operation (e.g. during the night time), a noise-optimised mode can be enabled at the touch of a button. This will reduce the speed and noise emitted from the internal fan, and switch off the LED indicators. All charging functions will continue to operate as usual. Reactivation of the display and fan is possible at any time, or will recommence automatically after 10 hours.
  • Battery regeneration function: for batteries stored in non-moving vehicles, the unit features a regeneration function which is automatically activated twice a week to prevent acid accumulation in the batteries during extended periods of immobility.
  • LED indicators: showing battery charging status, input charging sources, charging current (with varying intensity, depending on current supplied) and battery connection status. The unit also features an internal fan to prevent overheating.


This battery charger is compatible with Lead Acid, AGM, Gel and LiFePO4 Lithium batteries, with different charging programs available for each type. In addition, the charger is compatible with Electroblock power distribution units and AES fridges.

Click on the 'Details and Specifications' tab for more information about this product.



  • Operating temperature range: -20°C  to +45°C
  • Ambient conditions: max. 95 % RH, No Condensation
  • Inbuilt fan
  • Protection class: IP21
  • Dimensions: 217 x 85 x 250 mm
  • Weight: 2.9 kg


Battery specifications:

  • Nominal voltage lead acid: 12V
  • Nominal voltage LiFePO4: 12.0V - 13.3V
  • Recommended battery capacity range (always check battery specifications first): 90Ah-560Ah
  • Minumum recommended "Start II" battery capacity: 100Ah
  • Bulk / absorption charging voltage: 14.3V - 14.7V (depending on the battery type)
  • Float charging voltage: 13.4V - 13.8V (depending on the battery type)
  • Charging voltage limit (protection of loads connected to the battery): 15.0V
  • Overvoltage disconnect "Board I" battery (protection of the battery): 15.5V
  • Overvoltage disconnect "Start II" battery: 16.5V


Mains charging mode:

  • Nominal operating voltage (AC): 110-230V / 45-65 Hz
  • Operating Voltage range (AC): 90V - 270V (full capacity)
  • Max power consumption (AC): 360W
  • Max current consumption (AC): 7.4A
  • "Board I" battery charging current: 40A
  • "Start II" battery charging current: 5A


Battery to battery charging mode:

  • Max charging current from "Start II" battery to "Board I" battery: 60A
  • Max consumption from "Start II" battery: 82A
  • "Start II" battery voltage range: 10.5V - 16.2V


Solar charging mode:

  • Solar power capacity: 60W - 430W
  • Max solar current: 26.0A
  • Max solar voltage: 36V
  • "Board I" battery charging current: 31.5A
  • "Start II" battery charging current: 5A


This product is covered by a 2 year manufacturer warranty. For more information please refer to our Terms and Conditions.



Full details explaining wiring and operations can be found in the user manual supplied with this product (see Documents tab).

If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see Contact Us page for more information).




The following documents are available to download:

User manual for 30A 12V battery triple charger (VBCS60-40-430)