[Limited 3500]

Had dealer enable the Electronic Voltage Regulation feature on by truck today. It comes already enabled on trucks with the ambulance package. The purpose is to raise the engine idle speed to maintain battery voltage when there is a large electrical current draw on the electrical system. In my case I have a high output Xantrex ProSine 2000 watt power inverter that draws over 300 amps under full load from batteries/alternators. The alternators on my truck are rated at a total of 440 amps (220amp x 2). The EVR feature on my truck is automatic unlike a similar feature that I had on my previous Ford F350 with dual alternators.

 

[sportsguy]

OK, THAT is a nice feature. Wish it were available in the 1500s.

 

[CdnoilRAM]

I like that it's automatic. I run a rescue truck I built on a F350 and just have the upfitter switch to run the high idle with the dual alternators, but I do like the idea of it being automatic.

 

[Limited 3500]

Edit for the original Post

I forgot to mention that the EVR feature can also be enabled on the trucks with the 6.4 gas motor.