Hearing Aid Battery Tester

This battery tester also doubles as a key ring battery holder!

The battery storage compartment slides out on either side and can store up to two hearing aid batteries (one on each side). Simply add the batteries and attach to your keyring (keep the pull-off tabs on the batteries) - you won't be travelling without a spare set of batteries!

Please note that hearing aid battery testers are not intended to give precise measurement of the battery's charge. They are intended to indicate whether the battery is still good or has run flat.

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