Amazon.com: NewPower99 Battery Kit for Samsung Galaxy Tab S3 9.7 SM-T820, SM-T825, SM-T827 with Tools, Video Instructions, Long Life Battery : Electronics
EB-BT825ABE EB-BT825ABA Tablet Battery for Samsung Galaxy Tab S3 9.7 Inch SM-T82 | eBay
Samsung Original Eb-bt825abe 6000mah Tablet Replacement Battery For Samsung Galaxy Tab S3 9.7 Inch Sm-t825c T820 T825 +tools - Mobile Phone Batteries - AliExpress