Does anyone here have any "feel" for the "Battery disconnected" and "Battery reattached" log entries? The rebooting came as a result of me turning off modems, router, external drives, monitor, cordless phone and finally, the computer, trying to locate a quiet but annoying "chirp". The "chirps" stopped when I tilted the UPS to look at the front panel. As you can see, log entries stopped at as suddenly as they started. [root at madeleine ~]# grep apcupsd /var/log/messages | grep Aug Aug 1 22:56:20 madeleine apcupsd[3342]: Battery disconnected. Aug 1 23:11:36 madeleine apcupsd[3343]: apcupsd 3.14.3 (20 January 2008) redhat startup succeeded Aug 1 23:11:36 madeleine apcupsd[3343]: Battery disconnected. Aug 1 23:11:37 madeleine apcupsd[3343]: NIS server startup succeeded Aug 1 23:22:06 madeleine apcupsd[3344]: apcupsd 3.14.3 (20 January 2008) redhat startup succeeded Aug 1 23:22:06 madeleine apcupsd[3344]: Battery disconnected. Aug 1 23:22:07 madeleine apcupsd[3344]: NIS server startup succeeded Aug 2 00:18:40 madeleine apcupsd[3344]: Battery reattached. Aug 2 00:19:27 madeleine apcupsd[3344]: Battery disconnected. Aug 2 00:19:37 madeleine apcupsd[3344]: Battery reattached. Aug 2 00:22:13 madeleine apcupsd[3344]: Battery disconnected. <snip> Aug 2 04:36:31 madeleine apcupsd[3344]: Battery disconnected. Aug 2 04:36:40 madeleine apcupsd[3344]: Battery reattached. Aug 2 04:36:48 madeleine apcupsd[3344]: Battery disconnected. Aug 2 04:36:57 madeleine apcupsd[3344]: Battery reattached. [root at madeleine ~]# date Mon Aug 2 08:45:41 CDT 2010 [root at madeleine ~]# Current UPS status is: APC : 001,038,0962 DATE : Mon Aug 02 08:56:47 CDT 2010 HOSTNAME : madeleine.localdomain RELEASE : 3.14.3 VERSION : 3.14.3 (20 January 2008) redhat UPSNAME : Clyde CABLE : USB Cable MODEL : Back-UPS XS 1300 LCD UPSMODE : Stand Alone STARTTIME: Sun Aug 01 23:22:04 CDT 2010 STATUS : ONLINE LINEV : 121.0 Volts LOADPCT : 17.0 Percent Load Capacity BCHARGE : 100.0 Percent TIMELEFT : 36.1 Minutes MBATTCHG : 25 Percent MINTIMEL : 10 Minutes MAXTIME : 500 Seconds SENSE : Medium LOTRANS : 088.0 Volts HITRANS : 136.0 Volts ALARMDEL : Always BATTV : 26.2 Volts LASTXFER : No transfers since turnon NUMXFERS : 0 TONBATT : 0 seconds CUMONBATT: 0 seconds XOFFBATT : N/A SELFTEST : NO STATFLAG : 0x07000008 Status Flag MANDATE : 2007-07-06 SERIALNO : 8B0727R20810 BATTDATE : 2072-00-37 NOMINV : 120 Volts NOMBATTV : 24.0 Volts NOMPOWER : 780 Watts FIRMWARE : 836.H5 .D USB FW:H5 APCMODEL : Back-UPS XS 1300 LC END APC : Mon Aug 02 08:57:32 CDT 2010 Hmmmm... Noticing above that the third anniversary of this UPS' birth (7/6/2007) approacheth, I wonder if this might be APC's way of trying to scare me into recycling...