Battery Backup Not Working - HID ACW2-XN Technical Service Manual

Battery backup not working:

Key Indicators
•
Controller should remain powered up when mains power is removed.
• The STAT and SPD LEDs should both be ON
(Picture shows the STAT and SPD LEDs illuminated)
Analysis
•
Is the connection to the battery defective?
o Fix defective battery connection (polarity reversed or loose connection)
• Is the battery fuse defective?
o Replace battery fuse.
• Is battery defective?
o
Replace battery
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