Need another battery

[beat-down69 10+ year member]

I need a second battery to run in the back of my truck. I have 2 Re audio Mx 12 subs (1500rms each) and a Hifonics 2500d amp ( 2500rms X 1ohm)

So i dont know what size battery i need so please help with what size i need and if you have one what brand and how much are you asking for it.

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[RAM_Designs 5,000+ posts]

What size is your stock alternator? Have you already done the Big 3 upgrade under the food? I assume you have 1/0 wire ran to the back.

 

[beat-down69 10+ year member]

I have a stock 105 amp alternator and i just done the big 3 upgrade on friday with 1/0 guage wire and yea i ran 1/0 to the back