battery 96 300zx convertible
 

my battery goes down within 3 days. I have taken it everywhere to get it fixed. except nissan dealer. what to do

replace it.
car batteries aren't that expensive. If it continues to drain, you either have a short somewhere or the alternator isn't charging the battery. Have your car checked out, not just the battery.

Mine did that, had a problem with the factory alarm and had it removed. Now when it sits for extended periods I unhook the battery.

Take a voltmeter and tke some readings. See what your battery is before cranking...then crank it and watch it. After a little while turn the motor off and see if it falls and how fast. If the battery voltage readout doesnt jump to like 14 volts then you have a bad alternator and it is killing your battery. If it does jump to around 14 v. then turn around then drop very fast after turnin off the motor..then you have a bad battery that isnt taking a charge. Your car should be able to sit in one spot without cranking for a week ATLEAST without killing the battery. Granted you are not leaving your lights and stereo on 24/7 without cranking the car.

What everybody else has said and avoid a dealer like the plauge unless you have no other choice. You're gonna pay through the nose for the same piss poor service you'd get anywhere else.

Sorry, I'm a little bitter towards dealers in general when it comes to service.

I m not completely against goin to a dealer..just dont be ignorant. Go there with an idea of what is wrong and what it takes to fix it. I.E. An alignment isnt necessary to change an alternator...lol. Shops can charge you for stuff that isnt needed. Plus I take pride in DIY stuff. I like being somewhat self sufficient.