Smart alternators (prevalent in most vehicles made after 2006) provide efficient, variable voltage output, reducing emissions and enhancing battery charging. However, this voltage fluctuation doesn’t work well with traditional charging technology like VSR’s (Voltage Sensitive Relay’s).
The VSR’s depend on a constant voltage higher than 13.3V in most cases to be able to charge the auxiliary battery setup. A smart alternator in junction with the ECU of the car will decide when the starter battery is fully charged after cranking and dial the working voltage down after that, causing the VSR flick open and stoping the charging.
If you have a smart alternator a DC-DC charger is essential.
These chargers efficiently convert and regulate their working voltage, ensuring your leisure battery receives the right charge, maintaining power on the road.
These chargers efficiently convert and regulate their working voltage, ensuring your leisure battery receives the right charge, maintaining power on the road.
