11 parts

iPad 2 – Battery
Apple

iPad 3 / iPad 4 – Battery
Apple

iPad Air 3 – Battery
Apple

iPad Mini 1 – Battery
Apple

iPad Mini 2 / Mini 3 – Battery
Apple

iPad Mini 4 – Battery
Apple

iPad Mini 5 – Battery
Apple

iPad Pro 10.5" – Battery
Apple

iPad Pro 12.9" 1st Gen – Battery
Apple

iPad Pro 12.9" 2nd Gen – Battery
Apple

iPad Pro 12 9 3rd Gen / Pro 12 9 4th Gen – Battery
Apple