About this replacement
Designed for AT&T, Samsung devices. Compatible models include Galaxy S II, SGH-I777, Attain, Galaxy S II 4G, Galaxy Attain 4G. Replacement part numbers include EB-L1A2GB, EB-L1A2GBA, EB-L1A2GBA/BST. Key specifications: 3.7V, 1650mAh, Li-ion.