This battery CPLD-429 is a great replacement for your Sprint CoolPad Surf Mifi Hotspot. With a capacity of 2600mAh and a voltage of 3.8V, it will keep your device charged for hours. This Li-Ion battery is designed with a matte finish and a 3-pin connectivity. The battery is compatible with the Coolpad brand and is made of high-quality Li-Ion material. It comes with a battery and is an OEM product. The battery is perfect for those looking to replace their old battery, and it is designed to fit perfectly in your device.