Originally Posted by bring_it_on

The voltage booster you've mentioned is pretty good and perfectly fine to use. I use a different one with two boost settings but they all get the job done. It is as simple as literally pulling out a fuse and adding it instead and you can reverse the process whenever you wish to do so. That said, I had an Odyssey Group 34 battery that I ran without one of these for well over a year and I would simply plug it into the wall (overnight) with an AC-DC charger once every couple of weeks (sometimes once a month) and it worked perfectly fine. I know a lot of folks who don't even do that and have been fine with the AGM though I would recommend some sort of AC charging to get the most capacity and life out of your battery. They are relatively cheap and if it means a healthy battery for 5+ years then that is really a no brainer especially if you take trips where you do end up cycling close to that 50% discharge point.