The DX320-12 is the brand new 20A DC-DC-charger from Sargent and is the perfect solution if you plan to use one of Sargent's Power Control Systems (such as the EC155 or EC328) in Euro 5 or Euro 6 vehicles that have smart alternators. This unit will maintain a constant charge to your leisure battery regardless of the voltage supplied by the smart alternator, giving you peace of mind that you are maximising the opportunity to charge whilst driving to your destination.
It will also work just as well with standard alternators found in Euro 4 vehicles and earlier and will, in fact, provide a much deeper charge than can be achieved by charging directly from the alternator via a Voltage Sensitive Relay (VSR). We now recommend DC-DC chargers for all installations due to their superior performance and efficiency compared with VSRs.
Designed by Sargent to be easily installed alongside their Power Control Systems, this 3-stage automatic charger is straightforward to fit and the charging profile is selectable to allow you to charge any battery type (wet lead-acid, Gel, AGM & lithium). It has a range of features built in to protect both vehicle and leisure batteries, including over-current, over temperature, over-discharge and reverse-polarity protection. It is fully automatic and keeps your vehicle and leisure batteries separated when the engine is off, so you starter battery is always preserved for engine starting.
A 'start' signal connection is required either to the alternator D+ or to an ignition-switched +12V source. Note that if an switched-ignition source is used, the ignition should be turned off when the engine is off to prevent starter battery drain.
This unit is suitable for use as a standalone DC-DC charger and does not have to be used with Sargent's Power Control Systems. You can also use the majority of the other DC-DC chargers from our range with the Sargent Power Control Systems (for example, if you wanted a DC-DC charger with built in MPPT solar controller). Please contact us for more information.