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Re: Amp kills battery
In first are you sure that the connectics are correct?? to plug your amplifier to your electric system on your car you have to plug the positive (Big Red) to the positive battery via a fuse breaker, the ground(Black) must be connect to the car frame and it has to be shortly, and the last connection blue must be connect to your switched ouptput on your radio.
If this are correct you have to use an amperemeter to follow your leak, for this you have to go to a electrical car specialist. ;)
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Based upon what you have said, it would seem that you have something that is causing a continuous battery drain. Have you added any new electronics to the vehicle that may have accidentally been wired up to a constant hot source instead of one that is controlled by the ignition switch? Many enthusiasts accidentally install stereo amps directly to hot and find they never shut off, killing the battery. If you are skilled at electronic troubleshooting, you may be able to track down a wiring problem yourself. I will warn you that many repair shops will attempt to diagnose your problem, but few are trained to do it efficiently. If you decide to pay a pro to fix it, go to an Auto Electric specialist. They charge more per hour, but will take far fewer hours to locate and repair the problem than the corner mechanic.
the best way to test an alternator is with a load test-partstores dont do that--battery may still have a bad cell even tho it tested good--an alternator can burn up charging a completely dead batt--make sure batt reads at 12.6volts and no less-----if it reads say at 12.3 its only 50% charged!
-Sounds like the alternator no produce enough power.
-Start the car and let it runs for 10 minutes to temperature then check voltage at battery. You should get 14.5 volt or +/-. It less then
13 volts. the problem is the alternator. Replace it or rebuild.
Sounds like a bad connection or a bad battery cable. Are the battery cables clean and tight on both ends ?
Yes the engine should crank if the battery is charged no matter what condition the alternator is in.
If you mis installed the jumpers you probably killed the alternator and burn up the diodes. When the alternator dies the car will only run for a short while off the battery and then quit running altogether. Check to make sure you have a working alternator and a good battery.
Well , The vehicle could have several problems. The vehicle needs to be scanned for codes. The electrical system has an open circuit. The open circuit can be a window switch , door switch , head light switch , a radio amp. or relay. There are so many possibilities that a very experienced mechanic is going to have to trace the wiring harness and check for power and resistance . Hopefully a code can be pulled to lead him in the right directions.
You have to make sure all the tail light bulbs are correctly installed and all the fuse installed are the correct type. The vehicle could have an open in the ignition switch and staying on all the time even with the key out and the engine off. I hope this information helps but to be honest there is no easy fix to the electrical system in this situation.