After the cornfield breakdown with my Harley friends, recharged battery and rode locally for a couple of hours last week.
Started acting up again and put it back on the charger. Lights on charger showed battery below 50% capacity again?

How do I find the issue? Magnito or something in between. Fair gearhead but not strong with electronics. Any suggestions?

Mods to electric system were new littium battery & headlamp. Confident not battery. Headlamp is halogen but only a 35/35.
(speedo removed).