7.4V, 3400mAh, Li-ion Battery fits Welch-allyn, Connex Spot, Connex Spot Monitor, 25.16WhBattery Fits Models: Connex Spot, Connex Spot Monitor, Grason stadler, Pressure Unit Connex Spot, Protocol Battery Part Numbers: 901000, Batt22, Om11878, Tm78370 If you are worried about the quality or the performance of the products from Cameronsino, take a look at the reviews from our customers. Sound quality is assured as the products are manufactured to a very high standard Cameron Sino batteries have manufactured generic batteries for many years.