The most indispensable accessory for your Nokia cellular device is the battery. Unless you are need of a paper weight even the most advanced phone is useless without power. Use this original Nokia BL-4CT Battery as a replacement or spare to extend the talk time of your Nokia phone. Keep your Nokia cellular device working at optimum performance levels at all times. Just pop the Nokia BL-4CT 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.