Scotty, Congratulations on your 200 million viewers! You should find a hot automotive product to market. I'm ready to replace a battery but don't want to lose ECU, Throttle, or radio setting. Does a battery tickle charger connected to cigarette lighter work as a memory saver?

 ye, but there already are battery memory savers  https://www.amazon.com/Powerbuilt-648539-Computer-Memory-Keeper/dp/B004BW9J1Y/ref=sr_1_1?ie=UTF8&qid=1509481533&sr=8-1&keywords=battery+memory+saver+automotive

Thanks for the quick reply. I have one of those but the last time I used it, I lost the memory, either to a bad connection or weak battery. I was told some cars need more than 9v.