School me on batteries

[x91evo]

I am going down to 12V (14V charging) system from a 14V (16.5V charging).
I need a solution for the most cost efficient batteries for 2000-3000RMS.
Car is set up for SPL but will mostly see music everyday. So I need the car to be reliable even in -20 degree or less Chicago winter lol

Looking for a suggestion for a primary charging with a Mechman 320A.
Also how many/what secondary batteries.
On 14V my only choice was the D1400s so it didnt take much thinking ha

AGM batteries pretty much have to stay with other AGM batteries right?

[TheUnderFighter]

Wait.... Why would you want to charge at 12v instead of 14v?

[x91evo]

More amplifier options for less money.
My mojo 4000 was stolen and it loved 16.5 charging, but its hard to find amps for lesser price that can handle it.

---------- Post added at 02:35 AM ---------- Previous post was at 02:34 AM ----------

And Im pretty sure it damaged my car PCM even though Mechman told me I would be fine.


EDIT: I want to charge at 14V (12V system resting)/
What I am coming down from is 16.5V charging (14V system resting)

[Spldecendant]

If u where had d1400's before you should probley just get d3100's or d3400's.....

[x91evo]

Well 2 of the batteries in the trunk got stolen along with my amp.
And 3400s are $260 a piece. I cant afford that.

Im wondering if I should stay AGM, or if there is something else I could do with the money.
I.e 5 group 31s? I have no idea thats why I am asking

[TaylorFade]

2-3k with a 320A alt? Toss a decent batt underhood and call it a day.

[Spldecendant]

I would get deka g31 batts can mostly be had for 150$ a piece same size as d3100

[TheUnderFighter]

2-3k with a 320A alt? Toss a decent batt underhood and call it a day.

This ^

[x91evo]

1 battery for 3000 RMS really?
Figure its around 5000-6000 Max power.

---------- Post added at 12:46 PM ---------- Previous post was at 12:45 PM ----------

deka g31 batteries look pretty good

[Timmy13091]

1 battery for 3000 RMS really?
Figure its around 5000-6000 Max power.

---------- Post added at 12:46 PM ---------- Previous post was at 12:45 PM ----------

deka g31 batteries look pretty good

There's 105ah batts 70$ at menards right now

[bhsdriller]

Deka Intimidator 9A34M Marine AGM Battery Deka Intimidator 9A34M AGM Marine Battery - Remy Battery

[x91evo]

Deka Intimidator 9A34M Marine AGM Battery Deka Intimidator 9A34M AGM Marine Battery - Remy Battery

That looks like a great deal!
Would this be alright as a primary?

Would never buy a battery from menards I know everything they sell is really low quality. I use to work for them.

And those deka g31s are more than the Xspower 3400s! Insane! lol

[x91evo]

Need to car to be safe for DD everyday.

[Timmy13091]

Need to car to be safe for DD everyday.

Lol there not gunna make your car explode and there warrantied so... Idk lol

[-BenBen-]

i need help too have a 270 amp alt.. batteries for 3k?