This replacement battery with the model number CPLD-429 is perfect for your Sprint CoolPad Surf Mifi Hotspot. It has a capacity of 2600 mAh and a voltage of 3.8 V. The battery is made of lithium-ion material and comes in a sleek black color. With this battery, you can enjoy a longer lifespan of your device and uninterrupted usage for a longer period of time. It is compatible with both the Sprint CoolPad Surf and Coolpad brands and has two ports for easy charging. Upgrade your device's battery with this high-quality replacement battery today!