Upgrade your JBL Boombox 2 with this high-capacity KP Original replacement battery. Featuring a robust 10400mAh capacity at 7.26VDC, this lithium-ion polymer battery ensures extended playtime for your portable speaker. The battery pack comes with model number SUN-INTE-213 and includes built-in circuit board dual protection for safe operation. Equipped with a multi-pin connector and flexible cable assembly, this battery is specifically designed to be compatible with the JBL Boombox 2 speaker system. The battery operates within standard charging parameters of 8.4V±0.05V maximum charging voltage and complies with IS 16046(PART 2):2018 and IEC 62133-2:2017 standards. For optimal performance and longevity, avoid storing the battery in temperatures above 60°C. This replacement battery maintains the power-hungry requirements of your premium audio device while ensuring reliable performance.