wiring a cd head unit to a batery?

[strungoutuk]

Evening.
after many years of rubbish cd players giving up on us 2 days into our yearly festival weekend, my brother and I have been considering building a little music box using a cd headunit hooked up to a car battery,
does anyone have any idea how long the battery life would be?...
and any advise from anyone who has done this in the past would be great..
Thanks
T

 

[Rob]

You honestly think this'd be easier than buying more batteries?

 

[Scrooge]

You could hire a one man band to follow you around the festival?

 

[The Fatty]

work its out. If the cd player takes 20amps and you have a 40ah battery, then it will last 2 hours.

 

[strungoutuk]

You honestly think this'd be easier than buying more batteries?

I already have the stuff laying around in the garage and it would be a silly project to mess around with rather than trying to find something easier.

the fatty, thanks. thats what I wanted to know

 

[Dink]

fire a solar panel into the mix aswell and i think you could get a good 6+ hours out of a 20Ah battery

 

[richy22]

No way a cd head unit used like that uses 20 amps, thats over 200 watts. Might use 200watts if you have 4 speakers attached and the volume up at maximum which I doubt.

5-10 amps at the most it would use.