Widex S4-VSD - Manual (Page 9)

9
Place the battery in the drawer, so that the plus (+) sign
on the battery faces upward. You can use the battery
magnet provided to steer the battery into place.
If the battery drawer does not close easily, the battery
is incorrectly inserted.
When changing battery, it is a good idea to hold the
hearing aid over a table.
The hearing aid may be provided with
a battery drawer without a nail grip.
A special tool for opening the drawer
may be included with this drawer.