This replacement battery is designed for use with the BlackBerry 8530 and 8520 Curve models. It is a genuine OEM C-S2 battery that is compatible with Verizon, Sprint, and T-Mobile carriers. The battery is perfect for those who need a reliable replacement or backup power source for their phone. With this battery, you can enjoy extended talk and standby time without the need for frequent recharging. It is a high-quality battery that is designed to provide excellent performance and durability. Whether you are a heavy phone user or just need a reliable backup, this battery is an excellent choice for your BlackBerry Curve.