Heath Consultants Heath Volume Corrector (HVC) - Manual (Page 29)

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3.
Lightly push down on the center retainer clip and use a small, thin bladed screwdriver to gently
pry the latches on the retainer clip free from the holder.
4. Remove the lithium battery and retainer clip from the holder.
5.
Remove the retainer clip from the lithium battery.
6. Observe the correct polarity of the lithium battery in the holder and insert the new lithium battery
into the holder.
***WARNING: Reverse battery polarity may cause a fuse to blow on the PCB.
7.
Install the retainer clip over the lithium battery and verify both latches seat properly onto the
holder.