Frustrating Electrical Issue
#1
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Frustrating Electrical Issue
whats the best way to track down an electrical issue that is draining 2 full batteries in less than 24 hours. Cant seem to see anything pulling any amps off of any circuit breaker, is there anything else I am missing. 2005 35 lightning
#3
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I've had the diodes ( or whatever they are) go bad in the alternator themselves and drain the battery. If the batteries are good and all the fused circuits are good then try disconnecting the alternator.
edit- you are familiar with the method of using a volt meter or small lightbulb and pulling fused to check the individual circuits, correct?
edit- you are familiar with the method of using a volt meter or small lightbulb and pulling fused to check the individual circuits, correct?
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Straight bottoms and flat decks
Straight bottoms and flat decks
Last edited by bck; 05-01-2018 at 10:52 AM.
#8
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I gave you some direction on FB. Here is a step by step (although I didn't read it thoroughly).
https://www.wikihow.com/Find-a-Parasitic-Battery-Drain
Here is the cable adapter I referenced. You can find them cheaper.
https://www.wikihow.com/Find-a-Parasitic-Battery-Drain
Here is the cable adapter I referenced. You can find them cheaper.
#9
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a volt / amp meter is all you need.
Throwing this out as well
Stereo ? unhook all that power to it including amps
Automatic bilge pump --- the float switch possible stuck up so that means it runs all the time.,., Not the manual side of the bilge pump but the automatic side /. float side - have seen this alot thru out
any electronics / graphs / depth finders and so forth ?
any lites left on in compartments or so forth ?
Do you have battery selector switches that powers everything off ?
Alternator
Throwing this out as well
Stereo ? unhook all that power to it including amps
Automatic bilge pump --- the float switch possible stuck up so that means it runs all the time.,., Not the manual side of the bilge pump but the automatic side /. float side - have seen this alot thru out
any electronics / graphs / depth finders and so forth ?
any lites left on in compartments or so forth ?
Do you have battery selector switches that powers everything off ?
Alternator
#10
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Assuming everything is turned off, The quickest way is to check for a draw is to disconnect the neg terminal of the ON battery and connect a test light between the neg battery terminal to ground, if you have a draw the light will be on .... Start pulling fuses till the light goes out !!!!! When the light goes out you've found your circuit, then isolate from there !!!!!! You'll need a wiring diagram possibly !!!!! Have fun !!!!!!