Product specifications

Section 5 Maintenance Internal Battery
3BSE036351-510 A 193
The battery must be exchanged whenever:
The PM8xx B(attery) LED flashes or is extinguished.
Multiple or extended power cuts have occurred.
Extended periods of system downtime have occurred for maintenance or
malfunctions.
For reasons of safety, exchange the battery only when the AC 800M is powered up.
Figure 63. Right-hand Cover Removal – here shown with PM860
Cover
Captive screw
Internal
battery
holder