How Long Will My Car Battery Last With Radio On. We would consider that after listening to your radio the battery should have a remaining power of at least 60 to be able to start your engine with good ignition system. If you have no accessories plugged in and the radio off and no some light its possible to leave it in over night but the parasitic drain will weaken the battery.
If you leave the battery for roughly two and a half months you will not be able to start the car engine. If you do a lot of stop-start driving with very short trips your battery might just be in need of a good charge. Most new vehicles come with a factory-installed battery that should last at least five years.
According to experts when using a standard car battery the radio will run for about 8 hours before the car battery runs out.
Some of these devices include radio systems headlamps and alarm systems. If it is only for a hour or so no damage will occur. I have a battery and I want to run an app application against it. Eg - my yellow top can run my cars accessories not including amps for 120 minutes and maintain 12v.
