The Hollyland HL-BAT1500 is a high-performance Li-ion battery pack specifically engineered as a replacement or backup power source for the Solidcom M1 Beltpack. With a 1500mAh capacity and 3.8V rated voltage it delivers reliable long-lasting power to keep your wireless intercom system operational throughout demanding productions.Ideal for broadcast live events touring and stage productions this rechargeable battery ensures minimal downtime with its quick charging capability (rated at 4.35V charging voltage). Designed for professional-grade durability it maintains consistent performance for event production teams rental companies and broadcast professionals relying on Solidcom M1 communication systems. Model: HL-BAT1500 Rated capacity: 1500mAh Rated voltage: 3.8V Charging voltage: 4.35V