I have a rino 110 that was turning off every one is saying that it was the batter compartment but i tried every thing Garmin would do s*** about it. So I took it apart and found a faulty connection from the battery to the main board... fired up the soldering iron put some heat to the connection to re-flow it, gave a little tug to make sure it was fixed and put it back together, powered it up and proceeded to beat the crap out of it and to my suprize it never turn off!!!