ehall8702 Posted June 3, 2019 Report Share Posted June 3, 2019 I'm debating on new batteries for my truck. I have a 97 GMC Sierra with 2 battery trays. Right now I have 2 interstate deep cycles and two small no name sealed batteries. Dual runs shca 1/0 over sized, big 4 with double runs on EVERYTHING. About 3500rms , 160a alt ( yeah I know, need something bigger, saving still). I wanna eliminate the two small sealed batteries behind my rear seat in the truck just because its cramped as it is. I have a bout a $200 budget which I know isn't much . Found some smaller batteries like a kenetic hc-600, I could afford 4 of them, two in each battery trays and all in parallel, would that be better than maybe a single stinger ssb2000 and then buy a second one when I save a few more bucks? I'm not set at all on a brand/size battery just throwing examples out there as it would seem 4 in parallel would be better than 2 in parallel. 2009 Silverado 1500, 7.5" lift, 37x12.50r17s, Built Gen 4 5.3L ( 4.8l flat pistons, decked 243s, SS2 Cam, Pac 1218 springs, ported intake, 120mm TB, Long tubes, 3" duals HP tuner software tuned by me), 4l80e swapped and 4.56 gears. All done by me. stereo is Pioneer avh 600ex, all stinger rca, jp23 v1.5, skar rp150.4, and hertz hpd4. 2 SHCA 6.5 8ohm, 1 SHCA 3.5", and 1 DS18 tw120pro in each door. The 3.5 mid and 3.5" tweeters are powered by the skar rp150.4, the 6.5s are powered by the hertz bridged @4 ohms. Dual runs of 3/0 welding cable, 300a alternator, 2 Vmax AGMs up front. current sub is a AB XR 12 ( dual 2 ohm) with bottom spider cut out in 2.25 cubes at 32hz Link to comment Share on other sites More sharing options...
SnowDrifter Posted June 3, 2019 Report Share Posted June 3, 2019 My thoughts: 2 in parallel vs 4 in parallel is largely irrelevant. It all comes down to the battery's own internal resistance plus that of your wiring. In this case, the measurement to pay mind to is ESR, or equivalent series resistance. If it's not published, it might be worth your time to probe the manufacturer for info being that ESR, combined with RC (Reserve Capacity) provide some fairly objective data on what you can expect from the performance of a battery. That being said, at 3.5kw, your value-dollar ratio might be better allocated to a high output alternator. What are you dropping to now? ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
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