I went out and got a new battery. The factory one says 550 CCA, thats cold cranking amps, for those of you who didnt know. The new one i got says 650 CCA ...This wont do any harm to my baby or the starter will it ??
EDIT: Also, does anyone know if Nissan makes a battery warmer for the maxima?? Or possibly an aftermarket one?

No it wont hurt and never heard of a battery warmer. It was 11 degrees this morning and my wifes car was a little hard to start. Good thing I keep mine in the garage.

http://www.padheaters.com/battery_heater.html

I stand corrected.

My OEM battery finally died too. Just put a Duralast 640 CCA battery in last week... car starts easier than 3 years ago with OEM battery.

Yeah i noticed the same. I got an 04 with OEM battery that just died and car definitely starts better now with "aftermarket" battery than ever before with the OEM one.

I never knew about these either until a friend of mine bought a 2004 SRT-4 and it came with a battery warmer from the factory.

Is it just me or a lot of our OEM parts are just crap!

Also first time I hear of a battery warmer. I'm sure it's a hot item in Alaska...

Yeah, move to Southern Cali

I put a 850 CCA battery in my old 1.9 saturn sc2. It didn't even have to crank. I put the key in the ignition and the battery started the car in less than 1/2 a second. Sometimes I would turn the engine off and the car could run on the battery alone for a few hours. It saved on gas.

OPTIMA Battery

Damn battery warmer first time i heard it

The nissan OEM maxima battery is junk. Seems like the quality of certain nissan parts have really gone downhill, a battery should def last longer than 3 years. Mine died on me too recently, I replaced it with a red top optima so I shouldn't have to worry for many years. Optima batteries are dry cell technology that handle weather, vibration and overall abuse (from high drain stereos etc.) way better than a traditional battery. Not to mention last 2 to 3 times longer but they are expensive at @ $155 after tax and surcharges. It was a no brain-er for me. BTW CCA are just that higher the number the more power/ability it will have to start in the cold weather. Unless you live in a very cold climate you don't need a battery warmer.

What is considered very cold? I live on Long Island and yesterday has been the coldest day yet at 15 degrees outside.

Thats cold but think of it this way maybe. The price of a good battery such a redtop $140 (sams club). The battery warmer $70 shipped but you have to plug and unplug it. Which is easier or better option for you?