The Ford smart charge system has a low voltage threshold of approximately 10.3 volts and an over-voltage threshold of approximately 16 volts. The correct charge voltage from the alternator should be around 13.8 volts. The smart charge system is designed to increase power output from the car’s battery while driving and offers added protection against electrical system problems. It is important to note that the Ford smart charge system can produce up to 18 volts, so it is not recommended to jump-start a vehicle with a flat battery using this system, as it can potentially damage major modules.
Contents
- What voltage is a smart charge?
- What is a 12V smart charger?
- What is the output voltage of alternator charging?
- What is the voltage of a Ford battery?
- What controls a Ford Smart charge alternator?
- What is the voltage output of a smart alternator?
- What is the voltage of the alternator on a Ford Smart?
- How many volts should alternator charge?
- What should the alternator voltage be?
- What voltage is smart car EV battery?
What voltage is a smart charge?
Should the voltage go up and down between around 12-15V then the vehicle has a smart alternator and you will need to use a DC-DC charger. If it stays steady & consistent at about 14V or so then you will have a fixed voltage alternator and be able to use a VSR.
What is a 12V smart charger?
A smart charger is designed to observe your battery’s status, and, provide a charge when necessary in order to maintain your battery, keeping it healthy and energised. This ensures your vehicle is ready to go, and prevents internal damage caused by running your battery down when not in use.
What is the output voltage of alternator charging?
around 14 volts
Output voltage should be around 14 volts (13.8 to 14.5 depending upon the application) with the engine running. If you check the voltage at the battery under the same parameters, you should not have more than a half volt drop between your result at the alternator and the result at the battery.
What is the voltage of a Ford battery?
Any reading between 12.77 and 12.65 volts means your battery is fully charged. A reading between 12.24 and 12.29 volts indicates that the battery is only about half charged. At this point, you may want to begin testing it more often or even begin to think about getting it replaced.
What controls a Ford Smart charge alternator?
Typically, the Engine Control Module (ECM) controls charging and can vary the charge rate dependent on a number of factors, such as ambient temperature (or battery ambient temperature), accelerator pedal position, electrical loading, and engine speed etc.
What is the voltage output of a smart alternator?
12.5-13.5V
If your readings are around 14.4V DC then you most likely have the traditional, non-smart alternator. If your reading is closer to 12.5-13.5V then it’s likely that you have a smart alternator.
What is the voltage of the alternator on a Ford Smart?
Remember when you remove the smart charge 3 pin plug from the back of the alternator, it reverts to a conventional alternator! If you do not have about 13.8 volts, carry out basic charging system checks and suspect the alternator, it’s not a smart charge fault!
How many volts should alternator charge?
The standard alternator designed for road vehicles has a voltage regulator mounted to the back of the alternator and set to a single charge voltage of 14 or 28 volt. This is sufficient for a car battery, which is rarely (if ever) discharged.
What should the alternator voltage be?
between 13.9 and 14.8 volts
A good alternator should maintain battery voltage between 13.9 and 14.8 volts (14.2 is optimum). Even worst-case, with all accessories turned on, there should be at least 13 volts at the battery.
What voltage is smart car EV battery?
great question, thanks for asking! yep, your smart has a 12 V battery that starts the high-voltage system and operates the on-board electrical system.
