Thanks for the information. I appreciate your experience with all of these batteries. The battery I am looking at is the Epoch 36V which has Blue tooth connection and also a plug in battery monitor. I can glance at any time to make sure I have enough power to retract my Ulterra. I have a series 31 AGM battery for the starter and electronics. There has been no issue with that battery even with live scope. I had a problem with the previous 27 series running out of juice and luckily had enough power to start the kicker. I now keep a booster box in the boat for such purposes and hopefully will not need to worry about that in the future. If necessary, I will have enough room to install an additional lithium battery dedicated to the electronics.