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Wiring problems draining battery when not in use

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You have a bad ignition switch only thing that turns battery power on to rest of bike the way to check is to unplug the ignition an leave it un plugged an see if battery still drains there should be nothing hot but the main wires to ignition unless you have bag lights or radio hope that helps you to keep riding

Posted on Aug 05, 2010

  • Ned C Cook
    Ned C Cook Apr 04, 2011

    I support drew with his approach to isilating the problem. The battery to frame ground is a must chk.
    make sure both cables from the battery, the engine to frame and +ppos are clean on bothe ends of each. Loosen and retughten the headlamp housing mounting bolts and horn mounts. Isolate and test the non-functioning accessories as directed. Good luck _Ned_

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Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Seem there is small current drained to body (mass) at all times. When you use the bikes this thing considering nothing but the problem arises when you park the bike for (quite) long of time. A small drain still continue that killing your battery. Please check the cable harness and of course all relays for current leaks. You can use a good/sensitive digital multi tester to judge where does the root cause lies

Posted on Aug 05, 2010

  • cwbyintx Sep 05, 2011

    Look for wires that cross any part of your main frame. If you can remove the Fuel tank and check the wires running along the upper frame. Sounds like you got a High impedance connection to ground some where. To check drain you will need to install a tempory amp meter between the meter and the postive wire on you battery. Only a sensetive multimeter will allow you to see very small drains. you may remove the postive from the battery and install it to the black lead of the meter then put the red lead on the postive turminal. Be sure and set the meter to read for the highest possible amperage scale on the meter and work down till you see the reading on the meter. If you do not get a reading on the meter. Then a drain is not in the wiring. Re-check the battery may have a bad cell but not enough to effect the running in short term. Hope this helps.

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I have a Keeway arn 150 the other day i started it up and smoke poured out of the side under the seat. By the time i got the seat off the smoked stopped, and now i have nothing when I turn on the key. Its dead.. Battery has 12.58 volts and the solenoid is getting 12.58 volts.... Help I want to ride this baby...lol

Posted on Apr 04, 2011

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New alternator & battery somethings draining the battery also new battery cables and terminal


The parts you put in are not the source of the problem. You may have had some defects in those parts but now the true source of the battery drain needs to be fixed.

There are some testing machines Dealerships have that plug into the wiring loom and show whether something is shorting out or not turning off. These machines shorten diagnosis times but as car models change it gets expensive to have all of these machines. With your 1999 model, an experienced mechanic may have seen this problem before and will know what to check.

You need to be careful and Web search for wiring diagrams if trying to fix this yourself. Some wiring to the car computer is sensitive. With the battery disconnected an ohmmeter can show whether a circuit is grounding when it should be off.

Often a relay can refuse to release a connection when it is shut off. That means power can still go to the part that the relay connects and the battery will drain.

Some major drains can be the rear window defroster. Power window relays or sound systems can drain a battery too.

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My car is draining battery even with ignition and light off


That means that you have a parasitic drain, that can be caused by a short or by a defective device.

First try to understand if there is a parasitic drain.

Once you exclude the drain, replace the battery, a battery with shorted cells can cause the drain.

To measure drainage remove ignition key, connect the amp meter between the battery positive wire connector and positive terminal.A couple of milliamps drainage is normal, and is caused by instruments, car stereo memory, ECU etc.
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Also check car stereo and car amp HU, the HU can keep a unit on when the ignition key is off, causing drainage.


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First try to understand if there is a parasitic drain.

Once you exclude the drain, replace the battery, a battery with shorted cells can cause the drain.


The firmware has nothing to do with drainage, unless the unit is factory defective.

To measure drainage remove ignition key, connect the amp meter between the battery positive wire connector and positive terminal.A couple of milliamps drainage is normal, and is caused by instruments, car stereo memory, ECU etc.
Start removing more fuses , and open the wiring at different points , trying to locate the problem.
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Also check car stereo and car amp HU, the HU can keep a unit on when the ignition key is off, causing drain.


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I have replaced the altenator and the battery and am still waking up to a car with a drained battery. there is a power drain coming from some where and has been to three different auto mechanics who...


This is a problem with the wiring that is causing the battery to be drain, if you have some knowledge about the wiring of your vehicle that will help , check all the wiring of this and that should fix the probelm...Try also checking this wiring diagram that may help you http://pdftown.com/pdf-ebook/elmot535.pdf

Hope that helps.......

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