360 Battery Kill Switch/Tender Question

If its the same as the 430, the battery switch is not in the positive line, but the negative. Also if you look at the negative battery clamp you might see a few auxillary negative cables which do not go via the battery switch. So not everything is isolated.

 

Another possibility is that on your particular car, some aftermarket stuff got installed directly connected to the battery (extra Audio amp, LowJack, Dashcam, radar detector, etc,...). You can most likely tell by looking at the battery clamps for "extra wires".

 

The alarm circuitry and charging of the battery in the siren is still active even though the kill switch is off

 

It might be your battery is not as good as it used to be- put the headlights on and press the starter, see if the lights dim right down or stay on. Its a good testing tip

 

Most stereos have a yellow wire connected to the battery for clock memory or to retain radio settings.
So that and the alarm circuits will eventually kill the battery

 

I think if you search this forum you’d find that a good number of battery drain issues have been traced to aftermarket stereo equipment. Not all but a fair number.

As above, the disconnect doesn’t turn everything off, just most.
If you battery is more than about 4 years old, time to replace it. Keep your car on a battery tender and leave the disconnect switch alone.


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Our 360 is on a tender whenever it's parked in our garage. Sometimes 10-14 days. Its Interstate AGM battery is now over 6 years old and still performs as new. My CTEK died 5 years ago and was replaced by a Granite Save-a-Battery which was recommended by Brian Crall. I would strongly recommend also.

 

If the battery inside the alarm has failed, it might have leaked acid into the circuits and created a short. Does your alarm work properly?


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Lol. I had a Granite that failed after a few years so got a CTEK and it’s worked fine since!


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I keep my two cars on tenders 365, no issues. The modern day tenders monitor the state of the battery and trickle charge as necessary. One of our storage facilities here must have a hundred cars on battery tenders.

CTEK or Granite battery tenders. As above, any battery tender can fail over time. Just get a known brand and hook it up. Lots of threads on where/how to hook them up.


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Just leave the tender always connected when parked. Is there a possibility of something going wrong? In the grand universe of possibilities, maybe, but the risk is low, don't worry about it.