Power up your Boombox with this high-capacity 10000mAh lithium-ion polymer battery replacement. Featuring a 7.4V DC rating and 74.0Wh output, this battery ensures extended playtime for your portable Bluetooth speaker. The battery comes equipped with circuit board dual protection and operates within a maximum charging voltage of 8.4V±0.05V. Built to meet GB/T 18287-2016 standards, it includes essential safety features and clear warning instructions for proper handling. The battery pack includes a built-in connector for seamless compatibility with your Boombox speaker system. Its robust construction and reliable performance make it an ideal replacement for maintaining your speaker’s portable functionality. Please note the operating temperature limitations and follow the provided safety guidelines for optimal battery life and performance.