Your battery is probably too low to turn the engine over and get enough spark to fire the coil at the same time. To confirm this you could jump start it from a NON-Running vehicle or a jump box. Many times the battery maintainers will burn up batteries. I only use them occasionally to top up a battery and then I disconnect it again. In heavy stop and go traffic the electrical system doesn't keep the battery topped up to my liking. I have an AGM battery which is the best battery I have had on the bike. This one is much smaller and lighter than a lot of so called AGM batteries.