4
Preparation
Batteries
Your hearing system
uses a size 10 or 312
battery as its power
source. This battery size
can be identified by the
yellow (10) or brown
(312) color code on the
packaging.
To insert or replace the battery:
1. Use the nail grip on the battery door.
2. Open the battery door gently and remove
the old battery.
3. Remove the tab from the new battery.
4. Line up the battery’s plus “+” sign (flat side of
the battery) with the “+” on the battery door.
5. Close the battery door.
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