TTMALL 2x 2600mAh Li-ion rechargeable replacement battery for Samsung Galaxy S4 , GT-i9500 , GT-i9505 , SGH-M919(T-Mobile) , SCH-i545(Verizon) , SGH-i337(AT&T) , SPH-L720(Sprint), B600BC (two batteies) High-quality and rechargeable lithium-ion cell, long conversation and standby time long working life and excellent security. Integrated microchip prevents overcharging & lengthens battery life. Rechargeable with no memory effect Stylish designmade by third party