Re: Garmin 76cs best handheld GPS for boating?
I have the 76cs and I think it is a great unit for a handheld, if not one of the best. I don't think it is too hard on batteries. You just need a charger and always have a fresh set charged if you need them. I also always keep spare AA batteries on board just in case. It has a lot of internal memory (115 mb) and you can download nautical, topo and city maps from your PC with the cable that comes with it.