How long will a car battery last if the car is not driven?
Most car batteries which are in good condition will last at least two weeks without needing you to start the car and drive to recharge it, according to the AA.
How long can auxiliary car run?
Originally Answered: How long can I run my car’s stereo system before I drain the battery? On auxiliary power when all other modules are “awake” , if you’re lucky, 2 to 4 hours, depending on outside temperature and initial state of the battery and make of your vehicle.
How many miles do you have to drive a car to recharge the battery?
4 Answers. We always said about 7 to 10 miles of “good” driving after starting the car ie for that trip, not idle stop start in traffic. I use a battery tender or charger set on low during the winter for mine.
How long can a car radio run without killing battery?
Newer cars should be able to play radio easily for at least 10-15 hours without draining your battery. If your car battery dies within a few hours of listening to music, you may need to see a mechanic. Quicker power draining could be a sign you need to replace the battery completely.
How long does a new battery last if not used?
If you know your car battery is relatively new and has been kept in good condition, it can probably sit unused for about two weeks before it goes flat. If you’ve left your car unused for over two weeks, it’s quite likely you’ll need professional assistance.
Can I charge my phone in my car without it running?
13, 2013. When you plug your phone into your car to charge it up — especially when the car’s engine isn’t running — a feeling of dread can sneak into your mind. “Can my phone kill my car battery?” this voice whispers. The short answer is “yes.” The long answer, however, imparts some electronics smarts.
Does a car battery recharge itself while driving?
FALSE. You won’t fully recharge your battery by going for a drive, idling the engine, or going for a short stop-start trip. You could also void the battery warranty by not recharging it correctly. The only way to reliably restore a flat battery’s charge is to use an appropriate multi-stage battery charger.
Does the engine charge the battery?
The answer is ‘YES’, yes the car battery does charge while the engine is idling. Then the alternator is producing AC current, thereby charging the battery while your car is idling.
Does revving in neutral charge battery?
Does Revving the Engine Charge Your Battery Faster? The short answer is yes. Revving the engine will charge the battery faster because the alternator increases this amperage. When you rev the engine, the alternator begins to run faster, which helps charge the battery.
Is the Mercedes Benz auxiliary battery save to drive?
Is it save to drive and so on. The main function of mercedes-benz auxiliary battery is to provide voltage to “stop start” function, so this function may not work until you solve battery malfunction. You can keep driving a car for while, but it is always recommended to fix any fault as soon as possible.
Where is the aux battery in a Mercedes?
Anyway, after dome poking around, it seems the AUX battery is either in the trunk or lower drivers side dash. Knowing I had the battery in the trunk, I popped the dash cover just to be sure.. nothing there and couldn’t imagine the having 3 batteries (something Mercedes would do though.
What should the voltage be on an auxillary battery?
That’s not normal for a battery- 12-3-12.8 volts, maybe your measuring tool is not calibrated well. With the car running- observe the voltage and make sure you are getting 13.8-14.4 volts. What the aux battery read? Here’s a link to a recent thread I started.
What does it mean when your Mercedes says auxiliary battery malfunction?
Many Mercedes Benz owners have noticed that they will sometimes get an occasional warning message on their dashboard stating “auxiliary battery malfunction” which can be quite scary especially if it happens while you’re actively driving.