August 2008
Replacing the Batteries
1-6
Replace batteries only with the specified rechargeable
batteries. The battery charges even when the unit is OFF.
Do not attempt to recharge non-rechargeable batteries.
If you need to replace the rechargeable batteries, use the
recommended 3.0 Ahr NiMH batteries (part number 200-081). To
replace the batteries:
1. Remove the rubber boot.
2. Open the panel located on the back of the PT878 unit.
3. Disconnect the old batteries and dispose of them properly.
4. Install the new batteries (see Figure 1-2 below).
Figure 1-2: Back Panel of PT878
Note: To further extend the battery power of the PT878, the GE
Sensing Part #705-1283 option uses 6 AA alkaline batteries.
!WARNING!
Battery Located
Behind Panel
Installation & Operation