3.7V, 5200mAh, Li-ion Battery fits Vocollect, A4700, A500, 19.24WhBattery Fits Models: A4700, A500, T5, Talkman A500, Talkman T5 Battery Part Numbers: 136020805b, 730022, 730040, Bt700 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. Although a generic version of the battery, the battery we supply is designed and built to be as robust and as