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How Big of a Battery Bank Do I Need?


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I current have a 250a DB Electrical alt installed with a Deka 9a78DT as my front battery running 1500 watts. At idle I drop to around 13.9 and when cruising I stay right at 14.5 volts. Now I want to run 4300 in the near future and need to know how many batteries and what batteries would be best. I'm kinda thinking three Deka 9a31's but am open to other things and am willing to buy used. I want to try and stay around 600 for all of them so gimme an idea for how many and what I should get.

2002 Chevrolet Trailblazer LT

Jensen VM9223 | Pioneer Premier Comps | Audiopipe AP15001D | DC Level 4 XL 18 in 6 cubes @ 36hz | Deka 9A78DT | Knu 4 Gauge | Big 3

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