After doing more research and looking on Amazon I can purchase the 12.8V 100Ah deep cycle group 31 for just a few more dollars. Most people I know are using IONIC Lithium.
Just my thoughts, I have 3 12.8/100 in my Lynx, been flawless since November 23! Mine are first Gen, NO blue tooth, but my power pole charge says they hang around 13.3 volts, ready to go. I figured for price, if they last 2 years, they worth it.