This Digital Battery Checker and Keychain is a convenient and portable way to test your hearing aid batteries on the go.
For Zinc Air, 1.4V Hearing Aid Batteries. Digital Readout, keychain style. Also has a drawer that can hold two batteries.More Information:
Use this digital battery tester to conveniently test the strength of hearing aid batteries. This battery tester includes a key fob for hearing aid batteries and the tester is designed for Zinc Air 1.4V hearing aid batteries. This digital battery tester also has a drawer that can hold two additional batteries.