Exility BL-4C Battery is a rechargeable lithium-ion battery that is designed for use in Nokia mobile phones and other electronic devices. With a capacity of 860 mAh and a voltage of 3.7V, this battery serves as a suitable replacement for BL-4C batteries in a range of electronic devices. The Exility BL-4C Battery is made using high-quality materials and is designed to deliver stable and long-lasting performance. It is easy to install and remove, and users can recharge it using a compatible charger. The battery features protection circuits that ensure its safety and reliability, preventing overcharging, over-discharging, and short-circuiting. This feature extends the battery's operating life and makes it a cost-effective solution for users looking to extend the life of their electronic devices. The Exility BL-4C Battery is lightweight and compact, making it easy to carry and store. Overall, the Exility BL-4C Battery is a reliable and affordable power solution for users of Nokia and other mobile phones and electronic devices.