Soundlink Hearing Aid Battery Tester with Spare Battery Storage Case

Great

Didn't last. the scale does not measure the value of the battery accurately

This is supposed to allow the user to test several sizes of hearing aid batteries. I have several of these units. They do not always work properly. One of my units always says that the battery is fully charged even though he hearing aid does not work because it needs a new battery. There appears to be some issues with the quality control by the manufacturer.