ok i got a 1995 nissan 240sx se s14 it has a battery drain... i pulled fuses 1 was a 10amp audio fuse and the other one that is causeing the drain is a 7.5A (electron Batt) fuse??? wtf is that ??? its highlited in white 2.... if someone could help me maybe it will solve my problem thanks!!

 

haha nvm i figured it out... took a few hours but thanks anyways!

 

Im having the same problem, can you tell me what was the problem. Please its already pissing me off, and i had waste a lot of money on mechanics and electro mechanics.

 

I would like to also know what you found.
Thanks.

 

did you figure it out ??

 

A temporary solution until you have more time, is to put in a battery cutoff switch.

Lever type or round knob to cut off the ground wire.

When you park the car, cut off the ground terminal.

Also useful for when you work on the car, or as an anti-theft switch.

 

Then......

Pull out half your fuses and see if the battery goes down.

If battery goes down, what you had still plugged in had the battery drain.

Pull out half of THOSE fuses of what you still have plugged in.

Continue pulling half until you find which fuse allows the battery to drain.

That leads to the problem. Then you can fix it.

 

ok i will explain the short/long story i had an old head unit & the car was draining the battery so i bought a new head unit and plug the cables as they were, so the drain continues. so i did a lot of times the method you told me and the fuses that only make the difference was the electron battery fuse. Which it was radio and clock cluster so i suppose it was radio so i went to an electronic mechanic and he find out that in the radio harness the yellow cable(constant 12v) was the drain issue, so he swap it to the red cable which i think it is a ignition cable.

 

If you are sure that a certain fuse or wire is the drain, some people run another
wire and install a switch in the middle of it, and just cut it off when not in use.

Another way to cut it off is to use a relay that is wired to break the connection when the ignition switch is cut off.

In other words, when the switch is off there will be no current flowing to where you think the drain is.

 

It may be labelled as radio and clock, but some cars have more things sharing the fuse than what
are written on the label.