The Entel CNB550E Lithium-Ion Battery Pack (CNB550EV2) is a lightweight, high-performance 2000mAh rechargeable battery designed for Entel IECEx series hand portable radios. Built with advanced Li-Ion technology, this marine-grade battery ensures extended operating time, reliability, and consistent power supply at 7.4V DC. Unlike older chemistries, it is free from the memory effect, providing long-lasting efficiency even after multiple charge cycles. With a nominal current drain of 40mA and a duty cycle (5/5/90) of 12.5 hours, this battery is ideal for professional maritime communication, offshore operations, and rugged environments where uninterrupted performance is critical. Compact, durable, and dependable, the Entel CNB550E battery is the perfect replacement and backup power solution for your Entel portable radios.