Why does my radio cut out after a few minutes with the engine off?
I have a Ford Focus. The manual states that with the engine off, I can listen to the radio for one hour. I can't, it cuts out after a few minutes. This seems to be a problem in general. Is this something to do with the battery, which may run down?
Asked on 30 October 2017 by David Hunt
![](http://images.honestjohn.co.uk/imagecache/file/pad/120x120/media/16477727/537450_458533677529584_1473549666_n.jpg)
Modern systems are designed to shut off quickly to minimise drains on the battery because recharging the battery via an engine driven alternator uses a lot of fuel. If the alternator is regenerative (only works on the overrun) then it will not charge the battery adequately after a significant drain from something like a radio.
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