Hearing Aid Battery Tester Battery Storage Case (Blue)
$7.30
Description
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.
