apex battery

Having an issue with my apex to where some days it will turn over fine no problem. Turn the key and it fires right up instantly. Next day I could go out and when I turn the key all I’ll get will be the yellow light on the dash with the engine symbol. Brand new battery in it last week but for...

Hi, battery seemed a little low when I started it. Yamaheater light flickers at idle. Sled bogs momentarily if I fully hit gas. Power issue? This is a vid. of it. Thanks!