Samsung Galaxy S4 Extended Battery and Battery Door - Black
The most indispensable accessory for your Samsung Galaxy S4 cellular device is the battery. Unless you are in need of a paper weight even the most advanced phone is useless without power. Use this Samsung Galaxy S4 Extended Battery - which includes a battery door - as a replacement or spare to extend the talk time of your Galaxy S4. Just pop the battery in your pocket or bag and you're good to go that extra mile, chatting with your friends, at work, or on the road.