Question about Harley Davidson FLSTF - FLSTFI Fat Boy Motorcycles

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Over charging and now when i try to hook battery up it has a direct short

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You didn't tell me what year or model bike but let's try this. Find your voltage regulator and trace the single large gauge wire that goes back towards your battery. This wires connects either directly to the positive post of the battery or to the starter where the battery cable connects. Disconnect this wire and then try to connect your battery. Make sure your ignition switch is OFF. Connect the postive terminal first, the negative last.

Good Luck

Posted on Oct 13, 2010


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When you turn the key you get nothing at all?
perhaps you put the cables on the wrong way and shorted something out?
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Positive negative polarity

potentially two problems It sounds as if you have a "Dead Cell" in your battery. If your battery light is not on, or comes on just before the car dies, it is not your alternator.
If your battery has a dead cell, it will pull the energy from the existing cells and kill your battery in the same manner that you are describing.
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Did you try it on a different battery? These automatic chargers won't charge unless they detect a little bit of voltage and not a direct short. Your battery might be shorted out. Good luck, Al K

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Power inverters can do this if they are internally shorted or they are being over loaded. If you are just using it to charge a phone or a computer it should not be over loaded. Now if you are charging a computer and running a small cooler at the same time, that may be real close to max which may blow a fuse. Have you tried hooking it straight to the battery to see if it will run what ever you are running. It has it's own fuse so if it has an internal short it will blow that fuse. It if works hooked to the battery and is just blowing the cig lighter or acc. fuse it can be a weak socket. If the socket is hot it may have a loose wire on the back side causing low voltage which can blow a fuse. So hook it to the battery direct, if it works ok there, reconnect it to your acc port and if it is getting hot it may be the weak socket. If it will not run hooked to the battery, it has an internal short and it would be better to buy new than try and fix. Sorry.

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Gerrypw - just get a new phon.

TIP DRILL - take the phone to a mobile service center and have them service or replace your charger port.

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