So I have a question to see if I'm on track for a proper battery bank to go with my stereo and alternator. I have a 2003 SAN 210 with a stock 70 amp alternator. I plan on keeping the Kirkland 27 group on switch 1/starting battery. On switch 2/stereo bank I'm going to buy 2 Deka 8A31DTM in parallel. I have three JL amps XD 600/1 sub, XD 600/6 boat and a HD 750/1 tower. So 1950 total amps. How long of run time can I see while the boat isn't running and do I need to upgrade my alternator? Does anyone have any better options or ideas? I'm hoping Brett Yates (polar bill) will respond.
Thank you for input Nate.
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