Poweradd&trade; 5200mAh Replacement Li-ion Battery with Black Back Cover Extended Battery for Samsung Galaxy S4,SIV,i9500,T-Mobile M919,GT-I9505,SGH-I337(AT&T),Verizon I545,SPH-L720(Sprint) Rechargeable li-ion battery,Voltage:3.8V/capacity:5200mah Replacement battery comes with more power for your phone,with no memory effect and environment friendly Grade A cell with built-in IC chip provide long-lasting power,more standby time and talking time and lengthens your battery life High quality provide full-speed and efficient charging,worry-free use and make the most of your day Package included:1Poweradd cell phone battery ,1Back cover,1User manual