That's good that it charges to 100%.
Do you have a trouble code reader?
If not, you can get a simple Actron scanner.
Don't get the Autel one because it can only reset and not read DTCs on my friend's Karma.
If you can't wait, you can grab one from your local pep boys.
It could be a cell imbalance issue like many owners have seen.
In the meantime, I would recommend charging it on level 1 to let the cells balance.