battery on tab3 8.0 drains quickly...an issue?

Tab 3, 8 inch. My tablet charged to your 100%in a couple of hours this morning and just shy of an hour later the battery was dead and the tablet had shut down. I was reading forums, nothing taxing at all.
 
I'm having issues with my tab 3 battery it does not want to take a full charge and discharges at an alarming rate
How can I post a picture on here please?
 
I timed it and I lost about 10 percent in one hour. Does that seem normal for just surfing using chrome?
I think my problem is more severe. Ever heard of IRUNA RPG APP? I recently installed it and now my battery life goes from 100% to 0% in 30 minutes. I thought it was because I had wifi on for so long but that wasn't the case. I am still confused and I am tempted to do a factory reset.
 
I am still confused and I am tempted to do a factory reset.
Factory reset will not solve hardware issue. Battery drops so fast is a sign of loose battery connector, common seen in Samsung Tabs.
I will fix it first before consider to replace the battery. Good battery should not drop more than 18% to 20% under heavy loads in 1 hour.
You need to look this connector under magnified glass to see any cracks or push it slightly to see if it's moving. The simple fix requires soldering skill to re solder this battery connector.

3100 Battery Connector.jpg
 
I have the same problem as it charges up to 100% and when everything is turned off the battery drains down. I tthought that with everything off it should hold its charge. DDoes anyone know what we can do about this.
 
I have the same problem as it charges up to 100% and when everything is turned off the battery drains down. I tthought that with everything off it should hold its charge. DDoes anyone know what we can do about this.