Hearing Aid Battery Tester Battery Storage Case (Blue)

Important Notice before Purchasing: Now digital hearing aids all have low-voltage protection . Hearing aids began to alarm if the voltage is lower than 1.1V , remind the users to replace the battery in order to achieve best effect . If you take the battery out , the voltage would be rebound . But please note , the rebound voltage is false electricity . If you test the battery on the battery tester , it would show full voltage . But in fact , it is not enough for using hearing aids . We have tested different brands & different types of the batteries , they all have the same point , that is if place the battery in air for a few time, the voltage would be rebound (Open-circuit voltage or false-open voltage). So when the hearing aid is distorted or alarm to replace the battery, the battery needs to be test immediately . And the result is for reference only, the actual feedback from hearing aids shall prevail.

• If we take the battery out , the voltage would be rebound . Please note , the rebound voltage is false electricity . If you test the battery on the battery tester , it would show full voltage . But in fact , it is not enough for using hearing aids .
• If you want to test a new battery,make sure to keep it in the air for sevearl minutes to active it.
• Digital Display indicates battery strength.
• Works with most size of hearing aid battery.
• Storage compartment for 2 extra batteries.