Running in ACC mode

[dn1234]

Sometimes at lunch I like to park the car at a nearby park and listen to the radio. I've always done this by turning the ACC mode on and listening from anywhere from 45 minutes to an hour.

I just did this in my new Genesis and found that after about 20 minutes, the system will continually beep at you and flash the Battery Discharge warning on the screen (I have the screen turned off as I'm listening so its coming on and using more power to tell me not to use power...go figure).

So my question is, am I really in danger of draining the battery listening to the radio (its usually talk radio or news so I'm not blasting out some heavy bass), and is there a way to disable that continual warning message? Or, can I run the radio only without being in ACC mode?

 

[msitter]

I get the battery rundown message anytime I play the entertainment system without the engine running. I think electrical requirements for this car are massive and need every Volt, watt or amp that it can get. While I have not looked at it, I hear the battery is massive. Several years ago there was talk of using 24, 36 or 48 volt electrics in cars because of the increasing electrical loads due to computers and all the previously mechanical tasks that are now electronic. I had one of the early SHO Taurus. It reportedly had several computers to run the various systems. If the battery got weak the car would not even idle after jump starting because the electrical requirements were such that at idle the engine did not produce enough juice to run itself and all of the systems.

 

[BacktoHyundaibychoice]

Sometimes at lunch I like to park the car at a nearby park and listen to the radio. I've always done this by turning the ACC mode on and listening from anywhere from 45 minutes to an hour.

I just did this in my new Genesis and found that after about 20 minutes, the system will continually beep at you and flash the Battery Discharge warning on the screen (I have the screen turned off as I'm listening so its coming on and using more power to tell me not to use power...go figure).

So my question is, am I really in danger of draining the battery listening to the radio (its usually talk radio or news so I'm not blasting out some heavy bass), and is there a way to disable that continual warning message? Or, can I run the radio only without being in ACC mode?

You won't drain the battery. IIRC, the DIS manual states that the radio will turn off after an hour(?) to prevent that from happening.
Others here have reported watching a DVD with no consequences.

 

[mikec]

45 minutes to an hour? Phfft... ignore the nag screens. I've left my car blaring XM through open windows to hear a sports event - car in the garage, me in the house - on several occasions. I turn the LCD off as you do though the nag screen does pop up - I don't see it because I'm not even in the car. After an hour, everything auto-shuts-off... so I push the START button again and turn on XM again. I've done this on more than one occasion - nearly two hours of XM at fairly high volumes. Usually the car has been parked for a few days too; the battery wasn't just "topped off" earlier that morning by the engine+alternator. Later that day or sometimes not for several days I'll try to start the engine; I haven't noticed any difference in how long it takes to start, how fast/slow the starter motor spins, etc. As near as I can tell, 2 hours of XM use - with the volume pretty high - doesn't discharge the battery enough to be a risk.

We'll see if that holds up after the battery is more than a few years old; mine is just over 1 year old now.

mike c.

 

[moose66]

The warning is probably to prevent someone from accidentally pressing the Start/Stop button. Just a not so subtle reminder that the car is in the ACC mode.

 

[dn1234]

45 minutes to an hour? Phfft... ignore the nag screens. I've left my car blaring XM through open windows to hear a sports event - car in the garage, me in the house - on several occasions. I turn the LCD off as you do though the nag screen does pop up - I don't see it because I'm not even in the car. After an hour, everything auto-shuts-off... so I push the START button again and turn on XM again. I've done this on more than one occasion - nearly two hours of XM at fairly high volumes. Usually the car has been parked for a few days too; the battery wasn't just "topped off" earlier that morning by the engine+alternator. Later that day or sometimes not for several days I'll try to start the engine; I haven't noticed any difference in how long it takes to start, how fast/slow the starter motor spins, etc. As near as I can tell, 2 hours of XM use - with the volume pretty high - doesn't discharge the battery enough to be a risk.

We'll see if that holds up after the battery is more than a few years old; mine is just over 1 year old now.

mike c.

Thanks, I was a bit surprised at how quick I was being warned, you would think the radio could run for a good while without affecting the car's ability to function. Too bad you can't turn off the warning though because its accompanied by a beep and that's a little jarring when you're kicked back relaxing. I've looked at the battery in the trunk, it looks massive.

 

[robthoke]

Alot of cars these days continue playing the stereo when you turn the car off. My wife's Vette plays for 10 minutes after you turn it off (if you don't open any door).