The first year I had a red dot I went through four batteries I think. But this was due to me leaving it on. As time went by I got better. Last year I put a new one in for dad at the beginning of season and he is still using it this season.

As far as the dot moving, it's not. You aremoving and it makes it look like it is. Set your CB on a table and benchso it can not move. Then pic a point that it is aiming at and then move your head around. The dot may appear to move in the scope, but you will notice it is still on the target.