Parallel = 2x amps (2 12volt, 100amp = 12 volt, 200 amp Series = 2x volts (2 12 v, 100a = 24v, 100a Given the batteries are the same. It's also not a good idea to connect 2 dissimilar batteries together (age or type), the weaker will drag down the stronger, even when switched off.
Mark, Gratis (6115) NOLA Want to keep your WHOLE PAYCHECK? PLEASE VISIT http://www.fairtax.org ----- Original Message ----- From: Jon Prestage To: [email protected] Sent: Tuesday, January 27, 2009 3:25 PM Subject: catalina27-talk: 12 Volt Batteries: Series or Parallel? Listees, I have a couple of questions. I use three 12-volt batteries in my C27 with an Atomic 4 configured in two banks. I use a starting battery on one bank (motor) and two deep cell batteries (house) in the other. Here are my questions: 1. I wired the two deep cells in parallel, that is positive to positive and negative to negative. I read somewhere that it might be better to wire the two in series, that is positive to negative and negative to positive. Which is best? 2. I've been charging the batteries by connecting a charger to one of the batteries, normally a deep cell, and then putting my main power switch on "All" and assumed this would allow all three batteries to be charged. Is this how it works? Should I be doing this in some other manner? Jon Boston 1858 ------------------------------------------------------------------------------ Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.552 / Virus Database: 270.10.9/1900 - Release Date: 1/18/2009 12:11 PM

