Thread: electric short

Have you load tested your battery? How did you determine it was the electronics with a test light?

I'd say if you have a test meter you could set it to mil amps and check it for draw at the fuses. You'll need to remove the fuses to do it. There may be a small amount of draw even with the units off, the culprit should show a big difference though. Another way would be to remove the fuses one at a time until your battery stops going down.

I removed all the wires from the positive post and attached a test light between the post and the led the test light showed current and then i removed the fuses one at time untill the test light went off. It went off when i pulled the fuse to the electronics.

Originally Posted by justinp61

Have you load tested your battery? How did you determine it was the electronics with a test light?

I'd say if you have a test meter you could set it to mil amps and check it for draw at the fuses. You'll need to remove the fuses to do it. There may be a small amount of draw even with the units off, the culprit should show a big difference though. Another way would be to remove the fuses one at a time until your battery stops going down.

tried to test load battery and it was not charged up enough, will try again later. Still it should not show current when everything is turned off? Right?

The way you did it is correct. Sounds like electronics. Try unplugging the power cord from the head unit and put the fuse back in and check again..If test light still lights up its in the cord.

Is by chance this Lowrance with SS and you have the yellow wire on a switch? and forgot to turn off?

Originally Posted by REDEYE50

tried to test load battery and it was not charged up enough, will try again later. Still it should not show current when everything is turned off? Right?

I'm not following what you did. The light will show voltage, you'll need a meter to show amp draw. It sounds almost like you have something back feeding.

Justin, He took the wires off the batt. pos. terminal and hooked to one end on the test light. he hooked the other end of test light to bat. post. The light lit up which means there is current going through. when he pulled the fuse for the electronics the light went out. That's the best way there is to check for a current draw.

I see said the blind man.

Are there multiple electronics on that one fuse?