At 78 yrs young I do not take un-necessary chances when lifting. My solution to change out batteries recently was to back my truck close to battery bay. I then placed a 2x10 from truck to battery tray and secured well. It was simple to slide the battery on the 2x10 into the back of truck. I did the same thing when installing batteries. Be sure to secure the 2x10 board or you will drop everything.