Quote Originally Posted by kosmo View Post
thats a good question. ive been wondering if the ex stream cold would harm my units also. i have my boat in a un heated garage .
LOL you guys kill me. Kosmo your in KY. !!!!!! EXTREME COLD? Just kidding.
My older depth finder(eagle 480 or something) I never took off the boat. It sits outside all winter with temps as low as minus 30-40 degrees. Whatever mother nature gives us up here in the north. 20 or 30 below is not uncommon at all. It still works just fine but I am sure that it can't be good for it to get that cold. Now my new finder is tucked away in the nice warm cozy house. I didn't want to take any chances.
I have seen some asking about batteries over the winter too. I charge mine up to full charge just before I cover the boat for winter. Usually the first of Nov. but sometimes as late as Thanksgiving. Again it sits out all winter with no heat or charger hooked up. I don't usually get it back out until March-April. I am probably jinxing myself right now but I have never had a battery go bad over the winter. When I pull the boat out in Spring the cranking battery usually shows around 40-50% charge and the trolling batteries show around 60-70% charge. RRRRRRRRRRR I'm probably going to be sorry I said this. We will see in the spring. Supposed to get our second snow this coming Sunday/Monday. My fishing preparation now is getting new ice auger blades.