I used a 17Ah Hunter to full satisfaction, for several years. Started at first try even after standing for several weeks in an unheated wintery hangar. I did however manually rotate the prop for a couple of turns first, to break the oil film and to pump up a bit of fuel.
[ edit: hint, indicating type of plane and engine might be helpful ]
Last edited by Jan Olieslagers; 16th May 2024 at 17:45.