11.1V, 3400mAh, Li-ion Battery fits Jawbone, Big Jambox, J2011-02-us, 37.74WhBattery Fits Models: Big Jambox, J2011 02 us, J2011 03 us Battery Part Numbers: 8390 ka02 0580, J200 icr18650f1l Cameron Sino batteries have manufactured generic batteries for many years. We offer the freshest batteries straight from the manufacturers; they are reliable and built with safety as an essential part of their construction. Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero