Battery drained twice in three days. Heard clicking noises by the passenger side

Ghostvette

Time for a new battery. Factory batteries at that age are just waiting for a good excuse to quit. I put an Optima RedTop in mine not to long ago, then stuck a tender on overnight.

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2015 Magma Red 6MT Sport Tech/2012 Fairlady MB 6MT Base (RIP 08032018)https://www.nicoclub.com/FSM/370Z/Coupe/

f00d4tehg0dz

Good news. Let the car charge some more, and it wouldn't' go past 10-11V. (Obviously battery is dead at this point then). Get the car jumped, drive over to Autozone. We disconnect everything, and test the battery. Reads bad. So now we know the big culprit! Also funny thing. On red tag for the positive connection is a warning label about windows and other items not properly initializing due to bad battery or low volt.

Anyway we remove the old battery and go to install a new one. I was planning on an Optima... they literally only had one battery, a duralast in stock for my car, the ****? Ah well... we installed the battery, cleaned the connections and everything is good now. In the future I'll order an optima Redtop online and be done with it. FYI the guy told me that batteries in FL only last around 44Months typically. Good thing to know.

Thanks everyone for the help! Fingers crossed no other issues arise.

SouthArk370Z

Glad to hear you found the problem and that it was an easy fix.

A few things to keep in mind after removing power from the car: windows may need to be reset, radio presets will probably need to be reset, engine may run rough for a while as the ECM re-learns the engine, you won't pass an emissions check until you've gone through several drive cycles.

PS: I wouldn't go to the trouble/expense of getting another battery. But that's just me. YMMV

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