SamsungSP368487A Internal Battery for Galaxy Tab 7.7 - Non-Retail Packaging - White (Discontinued by Manufacturer) This Samsung SP397281A Internal Battery for Samsung Galaxy Tab 7.7 solves your battery problems and gets your tablet to working just like before. This 5100mAh Li-Ion battery is specifically made for the Samsung Galaxy Tab 7.7. Is your Samsung Galaxy Tab 7.7 having problems turning on or showing signs of a weak or faulty battery. Compatible with the Samsung Galaxy Tab 7.7 i815, Samsung Galaxy Tab 7.7 P6800 and Samsung Galaxy Tab 7.7 P6810 tablets. OEM Part Numbers: SP397281A/SP397281/SP397281A(1S2P)