'24+ Nautilus Hybrid Charging Voltage

[markfm]

Curious - Do others see the hybrid "12V" voltage consistently up in the 15.2V zone when it's running?

(Vehicle was started around 10:02).

 

[angore]

Curious - Do others see the hybrid "12V" voltage consistently up in the 15.2V zone when it's running?

(Vehicle was started around 10:02).

View attachment 24412

Yes. At that voltage the battery should be charged so no real current going ino battery. Charging charts like novo say 14.8 is max voltage for agm.

 

[markfm]

Got it, found this in the WSM (414-05, subsection DCDC Operation):

"The DCDC steps the high-voltage down to a low-voltage (between 12.0 and 15.5 volts, depending on vehicle needs), providing power to the vehicle low-voltage battery systems. Depending on the vehicle and environmental conditions, the DCDC is capable of outputting up to 260 amps to the 12-volt battery."

 

[angore]

Got it, found this in the WSM (414-05, subsection DCDC Operation):

"The DCDC steps the high-voltage down to a low-voltage (between 12.0 and 15.5 volts, depending on vehicle needs), providing power to the vehicle low-voltage battery systems. Depending on the vehicle and environmental conditions, the DCDC is capable of outputting up to 260 amps to the 12-volt battery."

I recall that. What I learned that when you put in full accessory mode, the vehicle is operating off hybrid battery but NOT charging 12V battey. The voltage jumps to 13V+. When ON, it climbs quickly to 15V+.