clouduz Posted November 21, 2009 Report Share Posted November 21, 2009 Okay let me post current electrical.... 250a Mechman Rhino series Stock battery 600 CCA 68 AH 110 RC Deka 9a31 in back by sub amp (SAZ-3000D) 2 runs of 1/0 from alt positive to front battery Big 3 Done 1 1/0, 8G, and 4G from front batt to back battery Back battery grounded to front battery Was thinking of upgrading my front battery to a Deka Intimidator 9A78DT or Carquest NGT Extreme NG3478 Supposed to be the same battery as deka just re-badged (wanted to buy new local) Would I benefit any from changing from stock. Forgot to mention the specs on the Deka Cold Cranking Amps 740 Cranking Amps 850 Reserve Capacity 120 Amp Hour Rate 55 I was told yes b/c i would have two matching technologies (AGM) was also told no b/c the aH was lower. Goal is to keep the highest voltage possible while strengthening the electrical system. Quote Link to comment Share on other sites More sharing options...
clouduz Posted November 22, 2009 Author Report Share Posted November 22, 2009 anyone? I know there are some electrical gurus out there.... Quote Link to comment Share on other sites More sharing options...
kingcabon20s Posted November 22, 2009 Report Share Posted November 22, 2009 if i did the math right please correct me if im wrong but if you have 3000 watts you divide that by .7 for 70% which =4285.71 an divide that for by 13v = 329.67 times that by .6 for 60% = 150 you minus the 150 from 329.67 and get 179.67 amp hours needed to make the 3000 watts Quote My seller feedback. Link to comment Share on other sites More sharing options...
clouduz Posted November 22, 2009 Author Report Share Posted November 22, 2009 okay well i currently have 155 but will changing to a agm battery with lower ah help or be worse? Quote Link to comment Share on other sites More sharing options...
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