Rayovac has the most consistent battery on the market because of our strict manufacturing requirements which include 306 quality checks, 69 finishes cell test, and many more. Make sure that you let your hearing aid batteries air up for at least one minute before putting them into your device. This minute allows air to enter the battery and increase the voltage.
If you are a ProLine customer and one of your customers complains that they’ve received a dead battery please keep the package they came in and call Rayovac so we can replace the batteries for your patient.