12v to 6v review?
Currently have 2-12v 7ear old batteries that appear to be getting weak. Am thinking of replacing with 2-6v GC batteries (or maybe 4). Anyone have experience or real world review of moving to t...
Forum Discussion
JimK-NY wrote:
You will find many conflicting opinions on this subject. Most of the opinions will justify what choice the individual made. I do not think there is any data which demonstrates 6 volt batteries will perform better or last longer than equivalently sized deep cycle 12 volt batteries.
My battery compartment is relatively small so I picked a pair of 12v batteries that totally filled the compartment after I discarded the sliding tray to make more room. I also opted for AGM batteries because I did not want to check or maintain the batteries. At this point I open the door to the compartment once every year or so just to be sure there is no issue with the wiring or corrosion. I also opted for the best quality batteries with a good reputation: Lifeline. Now my only maintenance or concern is to be sure I fully charge the batteries at least every few days of use.
when comparing life cycles trojan true deep cycle 12V vs trojan 6V the 6V has about double the life cycle discharges vs. the 12V. Now that said, either probably gives way more cycles than the vast majority of RV users will experience before age ends battery life. The 6V has about 500 cycles to 25% SOC,
But as I mentioned in a previous post 12V have a distinct advantage with high current draw applications, way lower internal resistance and current usually divided amongst more batteries.
So pick what best fits your use application.
