7XINbox T4000E 3.7V 4000mAh Battery Replacement for SAMSUNG GALAXY Tab 3 7.0 SM-T210 SM-T211 SM-T217 GH43-03911A GT-P3200 GT-P3210 GT-P3220 T2105 LT02 T210 T210R T211 T215 T217

Arrived very promptly complete with "tool kit" - adequate for the job. Fitted to tablet & then charged up from about 2% to 100% -seemed to go OK. Used it for about 2-3 hours & it dropped back to 43% then within 40 mins had dropped to 0% and the tablet turned off.Charged up again & same problem at around the 40% mark. Then by chance I charged it to about 23%, unplugged it & about 5 minutes later looked at the tablet & it was showing 90%!!Random charge levels indicated and unable to get consistent charge/discharge. Started returns process, but there are no carriers who will accept a bare lithium battery (bizarre, when you can send one in a device with a couple of spares loose.....) which is potentially broken. Sorted after chat session with customer service.Yes it was cheap, especially when there are no longer OEM available but was hoping for a consistent battery.