The most indispensable accessory for your Sharp FX is the battery. Unless you are need of a paper weight even the most advanced phone is useless without power. Use this original Sharp BTR2 Battery as a replacement or spare to extend the talk time of your Sharp FX. Keep your Sharp FX working at optimum performance levels at all times. Just pop the Sharp BTR2 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.