Sense I use the navionics app on my IPad and use thier mapping and Lowrance's built in lake insight+the maps I've made with sonar chart live, I just look on my iPad.
My boat is parked in a attached garage to the house if I want to look at every thing IPad+depth finders I just walk out power them up,the Loworance Wifi has enough power so that I can sit in the house and run the Lowrance's with the IPad and look at everything.....I just have to remember to power the boat down when I'm done.lol