I have a galaxy tab s7 plus tablet and unfortunately the battery doesn't hold the charge well and it keeps the charge at 85 I tried with the original cable and some other cables it still has the charging problem it's very frustrating for a tablet that's expensive🤦♂️
I all ways let my battery go flat before I put it on charge if you don't it doesn't do the battery any good and it could be your battery playing up or you over charging you battery to much