oticon Sumo 20DM User Instructions page 7

Battery Replacement
A worn-out battery should be removed immediately.
When battery power is low, you will hear a series
of two beeps. If the status light is programmed to
be steady on, it will turn off. This indicates that it
is time to change the battery. It is not an indication
of malfunction. To replace the battery, follow these
instructions:
• Open the battery door
by pushing back the
raised edge and remove
the old battery.
• Remove the sticky label
from the + side of the
new battery
• Insert the new battery (size 675, preferably
dedicated super power battery) so that its + sign
faces the + sign printed on the top of the battery
door.
• The battery door should close easily. If you feel
any resistance it could be that you have placed
the battery incorrectly. Reinsert the battery and try
again.
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Any moisture on the battery surface should be wiped
off before use. When you change batteries, it may take
a couple of minutes before the new battery works with
full effect.
Disposal:
• Check with your Hearing Care Professional about
arrangements for battery disposal. There may be
a system for disposing of them.
• Never try to charge non-rechargeable batteries.
• Never dispose of batteries by burning them. There
is a risk that they will explode and cause serious
injury.
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