This is the current situation, looking for some expert advice.
Total amp draws with night time running lights + GPS + other accessories I am at about 70 amps. My alternator puts out max 50 AMPS
Currently, I have 2 batteries hooked up. Two high quality but different Marine batteries. I haven't run into any power issues yet as I don't always run at night so my lights aren't always on.
My question is this.
To be safe I am planning on hooking up two additional batteries to the system so I will have enough stored power to make sure that if I have to boat at night 2 days in a row I would have enough juice. I know I would be in a losing battle but with 4 batteries I would think I have a fighting chance.
I was looking and found the Optima Bluetop D31M. With 2 of them, I will have a huge power bank.
I am also worried about my alternator charging the batteries as they are not all the same.
What should I be installing with my 2 new batteries to not ruin them?