Batteries

A 1-year supply of batteries is included with the purchase of a hearing aid.  The chart below lists the four types of hearing aid batteries and the average life span.

SIZE	COLOR	AVERAGE LIFE*
10	Yellow	5-7 days
312	Brown	8-14 days
13	Orange	10-20 days
675	Blue	8-20 days

* Based upon 12-hour per day use.