3.7V, 5000mAh, Li-ion Battery fits Vocollect, A700, A710, 18.5WhBattery Fits Models: A700, A710, A720, A730, Talkman A700, Talkman A710, Talkman A720, Talkman A730 Battery Part Numbers: 730044, Bt 902 Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero instances of a product being damaged while using one of our batteries in that time. The Cameron Sino range of batteries are historically the most reliable and cost effective generic batteries we have