Would a Trojan 8D-GEL 225Ah, 12V Sealed Battery work in a car? efficiently?

[Iskavan]

Trojan 8D-GEL 225 Ah, 12 Volt Sealed Battery

My setup is going to be the Alphard Deafbonce 4,000d.1 amp and a psi plat 4 18. I have the amp and subwoofer, and wires are on the way. All i want, is about 20-40mins of playtime without voltage dropping below 12volts. I have a 250amp alternator.

Would a trojan work well? and last a few years? or should i go with 2 XS Power D3100's.

or something similar like this https://www.batterystuff.com/batteries/rv-marine/agm/8A4D.html

or http://www.amazon.com/250Ah-Sealed-Replacement-Battery-8A8DLTP-DEKA/dp/B010UR7D7K/ref=sr_1_cc_8?s=aps&ie=UTF8&qid=1464464558&sr=1-8-catcorr&keywords=12volt+250ah+battery

If there are better options, that dont put me over 800$ on batteries please let me know.

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[dbjunior 10+ year member]

Would it work yeah. Personally I would get a bunch of smaller batteries. Larger batteries tend to have a higher esr so they don't discharge large amounts of power as fast as multiple smaller batteries with the same total amount of ah. I'm currently running 10 60ah batteries with dual 270a alts and my voltage is great with 2 8ks and 1500w front stage. If your not to far from ma I could hook you up with some batteries for cheap.

 

[Iskavan]

hmmm thankyou.

So 10 bats at 60ah is 600Ah for your total system of 17,500. 17,500/600=29.1

My proposed system of 220ah and 3,500watts=15.9

To my point. 3,500rms/120AH=29.1

So in theory, 220ah for my 3,500 watts would give me near double the time your 600Ah at 17,500 watts gives you. Which is exactly what i was looking for.

 

[Massive spl]

You could get three Duracell agm g31s for a few dollars extra. They cost like $190 each at SAMs club.

 

[Iskavan]

hmm 3 duracell agm 931's would work? Thats cool //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Trojan Group 31-AGM Battery

how about this? its 161, would 3-4 of them work as well?

 

[Papermaker85 5,000+ posts]

That stupid. Get another alt. Deep cycles don't discharge fast enough. Ah means **** when the car us running on a dynamic load where you need fast dischadge..

 

[Massive spl]

I am I fan for alt power > batts but with the alt you have and three g31 batts like a Duracell,engergizer,Juicebox if there in stock will do good.

 

[Papermaker85 5,000+ posts]

Do yourself a favor and run another alt.

 

[Iskavan]

I cant, its a 79 bonneville. not going through that hassle, of making a bracket for another.

 

[Iskavan]

So i need fast disharge, get 4 duracells and a 20ish farad cap, fixed right?

 

[Papermaker85 5,000+ posts]

So i need fast disharge, get 4 duracells and a 20ish farad cap, fixed right?

Look into the car audio batteries or the ultracaps..

 

[adulbrich 5,000+ posts]

I vote for lots of smaller batteries. I got 31 batteries for $1,500. For $800, you could get 10 smaller AGM's and be better off than that Trojan scrubber battery

 

[Massive spl]

I vote for lots of smaller batteries. I got 31 batteries for $1,500. For $800, you could get 10 smaller AGM's and be better off than that Trojan scrubber battery

Then don't forget to add cost for wore for jumpers or buss bar if u get 10batts

 

[adulbrich 5,000+ posts]

Then don't forget to add cost for wore for jumpers or buss bar if u get 10batts

Apparently, aluminum bars are cheap. My copper wire was only $80 for all the connections

 

[TheFiverMan 10+ year member]

With that alt and 2 G31s batts of any. deka, duracell, xs will be plenty for that 4k.