2 Setting up
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NOTE If Extended battery is in use, charge the unit for at least 24 hours.
If after a full recharge, the battery indicator fails to reach Full, or a Low or Empty
Battery alarm displays, then the battery pack must be replaced.
Battery Pack Replacement
The following procedures explain how to replace the battery pack.
1. Disconnect the unit from the external power.
2. With a #1 Phillips-head screwdriver, remove all four screws from the battery
pack plate (Figure 7, Figure 8).
Figure 7: Unscrewing the Battery Pack
Figure 8: Unscrewing the Extended Battery Pack
3. Using the handle, pull the Battery Pack out
Figure 9: Removing the Battery Pack
Figure 10: Removing the Extended Battery Pack
4. Carefully slide the new battery pack into the chassis. Be sure it is
properly aligned.
5. Firmly and carefully push the battery back into place, making certain
the female connector at the front end of the pack plugs into the
ventilator.
6. Reattach the four screws.
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