I have two brand new marine deep cycle batteries, Everstart DC27-6 115 Ah in parallel, got lucky and they took my old one back (wasn't working properly within the first year) that's why I got two new ones. Now today at night darkness no charging going on my batteries are resting comfortably at 13V. The question is what is the resting full voltage for this kind of battery I know the usual full charging voltage is around 14.5V, but what is the resting voltage :s When you fill up a battery, and you check the voltage when full and it not being trickle charged what voltage would you get?
Just a question I want to gauge my batteries, I know nominal is 12V however I know with any battery nominal dun really mean crap.
If anyone can point me to articles or graphs I would apprichiate it because I just need to know how full they are a certain resting voltages.
terramir