Empire ScientificEmpire replacement for Samsung Galaxy Tab S 10.5, SM-T800, SM-T805C, EB-BT800FBC, EB-BT800FBB, 7900mAh, 3.8v, LiPol

This works perfectly and was easier to install than I thought it would be. Note that if you are careful, some connection do NOT need to be opened. The biggest problem? The four pin connection to the tablet. It SEEMS to connect but it really needs to be seated.With all that said, the REAL problem was the USB connector. If all points of the USB are not reasonably tight, it may look like the battery is the problem. After I replaced the battery, it still wouldn't charge right and replacing the USB cable instantly fixed the problem. I didn't do that replacement, but it may not be as bad as I thought it was.So, do NOT throw away your old battery. You may find it is the USB port being loose. Plus, the battery should be tossed properly - not in a landfill. We have an electronics recycling drop in my city and that's where I send most batteries and electronic components, so for me, it's easy.

Lack of quality and true about this item because as the pictures show that this item is not 7900 mAh but as I found printed by whatever manufacturing plant makes the individual cells they printed on there(even though it took a magnifying glass to read it) that each cell is 3830 milliamp hours and if you double that to make this battery, it only adds up to 7660 mAh, I can understand rounding up but this is 240 mAh! The second most important thing was when I inspected this battery closely as to its connections I noticed that not only that there was undo pressure on the connectors which may cause problems internally inside the cells but that one of the connectors wasn't soldered in which would have been dangerous if I had installed this in my device or at the very least created an unsecured/unreliable connection. Given these two factors I wonder if this battery is even lithium-polymer as they claim. I don't know, but they lied, with that fact I asked "did they just put some sticker on a lithium ion battery just so they can make more money?", I don't know for certain but these are the facts of the item I received.

Just a reference for others that might be having the same problem with their Samsung Galaxy Tab S 10.5. I had a problem where the battery would get hot. The battery indicator would go from 100% to nothing very quickly, random reboots, lines on the screen, the device would get hot, battery wouldn't charge, battery wouldn't stay charged. It was strange. I found a reference online where someone suggested that the battery connector on the main board needed to be resoldered. That was it. I bought the battery just in case the battery was bad--I only wanted to take it apart once. I took everything apart (videos online) with the tools in the kit. I found that the battery connector on the main board was broken loose, classic cold solder joint. The connector would actually flex up. I had to use a microscope, but could see the cracks in the solder. Heated up all the pins with flux and additional solder, and it fixed the problem.4-start. The fit of the new battery wasn't perfect, one of the four screw holes that secure the battery in place did not line up. Not a big deal in my opinion. So far the battery is working fine.

Liked quality and fit of replacement battery, once case is separated, battery replacement is easy to accomplish. Ribbon connections are very fragile and easily broken, may be due to quality of plastic, use extreme care when considering to remove them, better off taking the time to gently remove old battery by slipping out from under them. Replacement of connector is above most technicians skill set. I ruined mine and have over 10 years field experience. Only con was quality of replacement tools, Phillips screwdriver too big for screw heads, and separation tool easily broken.

This worked great in my Samsung Galaxy tab S. no issues taking my tablet apart or installing this product. I did find that the connector on my tablet had a broken solder joint and that it wouldn't charge unless I put pressure on the connector. Not the fault of the battery but a design flaw on the galaxy tab s.(internet search confirmed others have this issue) I soldered the connector back into place and this battery worked perfectly. My old battery did still work after fixing the solder joint but wouldn't keep the charge very long. This one works great and so far no issues.