Votronic 12V/12V 30A Battery-to-Battery Charger (VCC 1212-30)

  (4 Reviews)
Price:  £178.15   (£148.46 Exc. VAT)

Product code:  P01887
Brand:  Votronic



Awaiting new stock.

Note: Cables not included. Please download installation instructions to determine correct cable size and fuses for your application.

The VCC 1212-30 from German leisure electronics specialist Votronic is a compact and lightweight battery-to-battery (DC-DC) charger designed to charge your 12V leisure battery from your alternator whilst on the move. The highly efficient charging technology means that better use can be made of the alternator's charging capability (up to 30A can be passed), resulting in significantly reduced charging times and more complete charging. Even during short journeys a high level of recharge is possible, with a deep and full recharge achieved during longer journeys. Alternator voltage fluctuations and surge currents are eliminated which protects your leisure battery and connected consumers from harm, and the multi-stage charging profiles ensure your battery can never be over-charged. It features fully automatic operation and the starter and lesiure batteries are electrically isolated when the vehicle's engine is off, ensuring you cannot drain one battery from the other.

It can be fitted to vehicles with either standard or Euro 6 'smart' alternators and the selectable charging profiles mean it can be used with any type of lead-acid battery, as well as lithium LiFePO4  batteries. The great benefit of this charger over its rivals is its compact footprint which, at only 146 (L) x 67 (H) mm means that it can be fitted in virtually any location, making it ideal in installation where space is limited.

The Integrated Vehicle Power Supply Filter ensures that parallel charging sources (e.g. battery chargers, solar, generators etc.) can be used on the same battery without any issues and the unit can trickle charge your starter battery with a small 'bypass' current when your leisure battery is connected to a mains-powered charger. A battery temperature sensor is also included that can be used to optimse the charging voltages based on the ambient temperature.


  • Compatible with all alternator types (standard, Euro 5, Euro 6 +)
  • Fast and deep charging of leisure batteries from 60-200Ah (recommended range)
  • Can be used with all lead-acid (flooded, sealed, AGM, gel etc.) and lithum batteries
  • Compact footprint and light weight
  • LED status indicators
  • Protects battery and consumers from voltage spikes and surge currents
  • Selectable, multi-stage charge profiles for different battery types
  • Battery over-charging is eliminated
  • Fully automatic operation (activated when the engine starts)
  • Protects starter battery from accidental discharge
  • Trickle charges starter battery when charging leisure battery from mains power
  • Protection against over-load, over-heating, over-voltage, short circuit and back discharge
  • Automatic compensation for voltage drop in charging cables
  • Temperature-compensated charging
  • Charging aid for deeply discharged lead-acid batteries
  • Optional Remote Control Unit available
  • Designed and manufactured in Germany
  • 2 year manufacturer's warranty

Further info

Recommended for battery capacities in the range 60-200Ah in vehicles with standard or Euro 6 alternators.

  • Starter battery nominal voltage: 12V DC
  • Recommended min. starter battery capcity: 60Ah
  • Power consumption: 490W max.
  • Current draw: 0.05 - 63A
  • Leisure battery nominal voltage: 12V DC
  • Max. charging current: 30A
  • Recommended leisure battery capcity: 60-200 Ah (up to 260 Ah max.)
  • Max. charging current for deeply discharged batteries: 15A
  • Starter battery trickle charging curent: 1A max.
  • Output voltage: 15V DC max.
  • Standby current draw: 3-7 mA
  • Operating temperature: -20 to +45°C
  • Fan speed: Variable according to temperature
  • Overall dimensions: 146 (L) x 67 (H) x 40 (D) mm
  • Weight: 280g
  • Manufacturer's article no: 3324

Part Number:  C85065

Average Rating (4 Reviews):  
Write a Review and share your opinions!

Brilliant bit of kit
Thursday, 28 October 2021  | 

Ignore the reviewer who said the instructions are poor - the instructions are very clear. You just need to read them thoroughly (and several times), plan your installation and understand how motorhome electrics work. If you donít know what youíre doing employ someone who does.

I wired this to an EBL and it was really simple. There is a clear wiring diagram provided. The hardest part was deciding where to get the D+ connection from as there are several options. Not difficult.

Iím using this device to charge a lithium battery. I have been very impressed. Itís a fit-and-forget item. It just works (very well).

If you want your leisure battery charged properly, just fit one of these. So much better than split charge relays and battery masters.

Good product - poor instruction
Saturday, 14 November 2020  | 

The instructions that come with it are not very good or well translated. The D+ notation while technically correct does not help when trying to identify how to wire this up. Basically you need to find a live feed that is only active when the ignition is on, however that risks a flat battery if the ignition is left on, probably unlikely. To remove that risk you need to take a feed off the ignition light feed - try finding that! Unless someone has got better ideas. But whatever the instruction book doesn't help and neither were 12V Planet much help.


Hi, Thank you for your review, We understand your frustration but we supply all installation instructions provided to us by the manufacturer and have no control over there contents. Our team will always try and assist however they have no technical information on specific vehicles and are therefore unable to help locate the D+ feed required. For help with this you would be best to speak with the vehicle manufacturer.

Votronic 12v/12v 30A B TO B CHARGER
Friday, 12 June 2020  | 

It's tiny compared to a sterling b to b. But it's the best thing i have bought, i did have to reduce my cable size from 100amp to 16awg i have 2x 200amp batterys and solar and it charges them also fit kill switch's from starter batt to leisure batt and don't forget about fuses it does not mension them on the instructions, it's suitable for boats, campervans the remote control is good as well, bigger than the charger and easy to use once you get the hang of it, overall it's way better than anything sterling has to offer and cheaper too

Nice bit of kit
Tuesday, 5 May 2020  | 

I like how small this charger is, fits snug in the space I have next to my LB. So far it's worked a treat at keeping the LB topped up.


Votronic is a German company that has been designing and manufacturing high-end electrical and electronic products for the camper, caravan, marine and 'blue light' vehicle markets since 1987. Offering charging, solar, inverter and control technology, its focus is on innovative and extremely reliable products.

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