Battery running out

[trichkoff]

Hello everyone,

Recently Ive installed a subwoofer with an amplifier to my car. The subwoofer is Pioneer 12" 1400W with a 1x400W Blaupunkt amplifier. Im using it only on a running car and my battery dies whenever I turn off the music and the car. Leaving it for more than 15-20mins without anything my battery dies and I cant start the car again. What do I have to do so it starts normally after I leave it?

(Sorry for my bad english / also dont know if its the right forum/subforum)

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[BSchrowang]

It sounds like it could be two things. Either your battery needs replaced or your amp isnt turning off with the car.