Back in '84, when I was stationed at Ft Polk, LA, I bought a used boat with a 40 HP Johnson; got it all fixed up, and ready to go. I was able to pull start it. Off we (wife and 2 young dau) went to the Army Recreation center on a nearby lake; put it in, pull started it, pushed off from the dock and hit the "F" button; nothing happened, so I tried again several times as we slowly drifted further from the dock. Then I realized I needed a battery to run the electric shift! So, with both daughters asking why we weren't going anywhere, I paddled back to the dock, and pulled the boat back out, and went back home! I bought a Marine battery the next wkend!