I purchased a ionic 50ah battery and 12v 10a charger from a board sponsor 2 months ago. I’m running a Lowrance carbon 16. I started to notice that my voltage on the unit would be at 12.8 at the start of a day and 11.9 at the end. App showed 70% SOC but would get a notification that said less than 10% SOC please charge. So when I got home I plugged it up but the charger never came on. Come to find out the charger was no good. Tried to contact the board sponsor but couldn’t get them so i contacted lithium hub and they were great. Already have a new charger on the way. My question is the folks running a 50ah battery what is your voltage at 100% and then at 99% the next day. Mine went from 14.1 to 13.3 in 24hrs with nothing running. Any help would be appreciated.