battery size recommended
 

I have a everstart naxx-35s 550 cca/ ca at 32f 675 battery for my car. that drain out every 3-7 days (depend how many time a week I start it and drive around for 10 minute) without starting and I have to recharge it every time (take a full 3 hours) I have check all the fuse to see if it was over 0.50 on the multimeter and nothing was over 50(another post that I found said to check all the fuse) I was wondering if it too small for that car (and this was before I reconnected the 2 kicker in the back). I have look in the forum and other website to see what size battery would be good so it doesn't drain out (if my battery too small) and not to have problem with my kicker. but I haven't find anything that is related to this, I have a aftermarket radio, 2 kicker and a 300.1 amp. I seen a post saying that optima red top would be good and other post saying that they are not good. please don't be rude, im still learning. I will going to school on the 13 to learn more and hopefully work with Nissan :)

Jesus,

Here is a thread about that. https://my350z.com/forum/audio-and-v...z-battery.html
The consensus seems to be a Yellow Optima, there is a sticky thread on how to replace it on the 350Z, I just can't find it now. Try searching for it.

Get the charging system load tested.

Bad battery or you have a drain.