Do Ford Rangers have smart alternators?
The Ford Ranger has a ‘Smart’ battery charging system, which only charges the battery to a preset level to maximise efficiency and extend battery life.
How does smart alternator work?
The smart alternator system, also known as variable voltage alternators, allow the vehicle to control the output voltage and current from the alternator based on vehicle operating conditions. The idea behind this is to reduce electrical load and in turn mechanical load on the engine by the alternator.