The most indispensable accessory for your ZTE Aspect or Z431 is the battery. Unless you are need of a paper weight even the most advanced phone is useless without power. Use this original ZTE Li3710T42P3h483757 Battery as a replacement or spare to extend the function time of your device. Keep your device working at optimum performance levels at all times. Just pop the ZTE Li3710T42P3h483757 Battery in your pocket or bag and you're good to go that extra mile, e-mailing with your friends, at work, or on the road.