CommonByte OEM EB-L1D7IBA 1850 mAh Battery For Samsung Galaxy S2 Skyrocket Hercules Nexus (Bulk Packaging) Never run out of battery power when you want to stay connected with families and friends with this OEM Samsung Galaxy S II T989 standard battery Advanced lithium-ion technology keeps phone working at optimum performance Ideal as an emergency back-up or just to extend the use of your phone between charges OEM battery for you to keep as a reliable extra power source handy