Suggestions ...
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New User
Joined: Jul 2004
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Suggestions ...
I am currently running two amps(one for my subs and one for my components)...The other day when I was working on my friends car I left the car off but the radio on. When I went to start it the battery was dead..Now I know I was dumb for not leaving the car running but is there anything I can do to just have the radio going but not the car because I dont want to go out and sit around listening to music with the car on....Is there anything I can do to change this or will is just draw too much power to leave it off...????
Senior User
Joined: Jan 2004
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From: Central Ohio
Ryan, Your vehicle's battery will only remained charged for a limited amount of time with the engine off. The battery is charged by the alternator while the engine is running. No way around that. How long it will last with the engine off depends on several things; condition of your battery and alternator, type of battery and alternator, and the audio system that you have.
Posting Guru
Joined: Jun 2002
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From: Rio Rancho USA
Depending on how loud you were playing it and for how long, getting the largest reserve, highest CCA battery you can fit will help out. Running dual batteries will also help. Or you can do what i did and get a battery out of a Peterbilt (IIRC 1200 CCA and massive reserve power) and have reserve to spare. I ran a 400 watt RMS system for 10 hours while I was rebuilding the interior in my truck over a weekend, and it started up on Monday no problem.
Senior User
Joined: Apr 2003
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running another battery would be your best choice. just wire them in parallel with an isolator switch between the two and wire your system to the 2nd battery. that way you can just shut the switch and play your stereo as long as the 2nd battery has juice and you can still start your car even if the other battery is dead.
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Joined: Jul 2004
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What if I took away the 1000 watt amp powreing the componenets and jsut used my 2000 watt amp to power both the subs and componenets will that not draw as much from the battery and can i play the radio without the car on....?
