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Constant power to it, draining battery - Alpine Car Audio & Video

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When connecting the power supply to a car stereo you have to make sure that the power cables are not connected directly to the battery. In most cases you have a red cable with a fuse holder with a bigger gauge yellow cable, also with a fuse holder. First things first. to get rid of the problem I would really advice to get a stereo wiring harness, which you can find at Wal-Mart or your nearest stereo install shop. Then what you want to do is go and buy a current tester from auto zone or auto parts store, or if on a very tight budget nearest dollar store current tester would do for this project. After doing that carefully remove the stereo. then look for your power cables coming from the car. When that is done carefully connect the matching wires and you should not get a battery drainage anymore. Hope this works for you.

Posted on Sep 23, 2009

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Hello! I have a s500 2001Benz and our battery keep dying overnight why is this..

You have an excessive power drain from some electric component in the car and it is draining the battery power rapidly. That is, assuming you have a sound battery that is holding its charge.

You need to have some tests run to identify the source of the drain and rectify it. You will need to either have Mercedes do this or a competent auto electrician who is familiar with Mercedes systems.

The battery will not last very long if it is being constantly discharged like this due to the excessive power drain.

Furthermore, if the battery is old and on the way out it will not hold its charge for very long even if there is no excessive power drain. When the car is idle and everything is in working order, there are still systems on the car that drain a small amount of power constantly so you still need a sound well charged battery.

Mar 10, 2015 | 2001 Mercedes-Benz S-Class

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Car battery goes dead within 3 days it is my new pioneer radio that drains it.

Would not think so, radios do not use that much power. My car sits idle for weeks, still with power to constant 12v. Check your battery, IF going flat that quick, probably needs replacing

Mar 18, 2013 | 1996 Jeep Grand Cherokee

2 Answers

Parasitic battery drain

A stuck relay will do this.

Nov 27, 2012 | Cars & Trucks

1 Answer

My battery keeps going flat and when i ride with it dosent seem to charge back up much or at all . The lights wont work probabbly and blinkers dont work at all when the battery is flat even know the bike...

First thing, how often do you ride it? If you don't ride it every day or atleast every other day the battery is going to lose power, even if its brand new. The best thing to do is to get a Battery Tender which you can find online or at your nearest motorcycle shop. Also if anything is constantly on it is constantly draining the battery. I would get a battery tender. They are useually around 23.00 up to 40.00. Good luck!!!!

Sep 27, 2010 | 2001 KTM Exc-Racing E 520

1 Answer

KDC-215S battery drain

You could add a switch to control the power going to the head unit. I have seen this done in many different vehicles where the head unit drains the battery, even when supposedly off.

Jul 19, 2010 | Kenwood KDC-215S CD Player

1 Answer

Turns on for a minute then seems the power is gone and making constant sound

make sure its power cord is plugin to the wall outlet, it makes constant sound to alert that it has no power supplied and its batterry could be drained in time

Oct 19, 2009 | CyberPower (CP800AVR) UPS System

1 Answer

I need wiring color coding 4 pioneer deh 2050mpg? i know red is constant power.

Not to question you about the red being constant power but I have a pioneer deh-1600 car stereo and red is hooked to electric terminal controlled by ignition switch (on/off) and if your unit has a yellow wire that goes to constant power. The only problem with hooking up the red wire to constant would be if you happened to accidentally leave your player on it could drain the battery. Hope this helped a little. Good luck.

Oct 10, 2009 | Pioneer DEH-P2000 CD Player

1 Answer

Constant Power wire draining battery HELP!

Okay, I think I have it. The red and yellow wire into the deck need to be connected to two different power sources.

The red wire should only be hot when the accessory switch is on. The yellow wire is for constant power to maintain memory in the deck.

Connect the red wire to a source which is only hot when the ignition switch is in accessory position -- that should solve the problem.

May 06, 2009 | 1984 Lincoln Town Car

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