I have a 2008 Ford Edge AWD. My battery died last night, so I went out today and picked one up and installed it. Now my transmission is shifting very hard, it almost feels like it's slipping. It's the worst from 2-3, 3-4, 4-5. Never had any problem with it until I changed the battery. Has any one else had this issue? Is there a time relearning period after a battery disconnect? Appreciate any help.