Bests & Worsts Reviews from Amazon

Im trying to be careful about rating the product vs. seller but I'll just try to give as much detail as possible so you can be the judge. I purchased this battery to use as a spare from wireovia. The battery came in a small plastic slip/bag and was taped shut with a label with product info, etc. This battery never fully charged. The most it charged to was 84%. After I unplugged it, it would inexplicably rise to about 91% and then drain. Of course, sometimes battery charges aren't read properly. So I completely drained it (twice!) until my phone turned off. Then recharged, still 84%. Additionally, this battery drains MUCH faster than my original battery that came with the phone. I'm returning it.