New owner who has what may be considered dumb questions. First electronic are 998 and 788 Humminbird. 225 Merc. Is there away to keep track of battery level. Where is the best place to start to get electronic set up. I have read the manual and have spent a few hours on water. I do not think that i am getting the most out of the 998. Also a new member, so i will search this site for answers. Thanks in advance. Justin