How Long Can The Radio Last On A Car Battery. Your battery would last 25 hrs 20 AH8 A 25 hrs at threshold where you can still start your engine. Your cars battery can last a long time on accessory mode.
You kill your time by listening to some music on your cars battery. Idling the engine just to listen to the radio would be a bit much. And a standard 4x50W car stereo generally has a 10Amp fuse but.
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.
Make sure to turn off heaters and lights as these could cause the battery to drain quickly. An average battery can last approximately 5 to 6 hours if the stereo system is working on it. I suspect your system runs on 110VAC so youll need to figure in an inverter to change 12VDC to 110VAC. Most car batteries are about 60AH so they can supply 60 Amps for 1 hour or 6 Amps for 10 hours.
