Forgot to include tech@... Hi Andre,
I tested upd(4) with my APC Back-UPS ES 550. It looks like it may only have partial support but figured the report will be helpful nonetheless. I'm currently using NUT for monitoring. dmesg: upd0 at uhub3 port 2 "APC Back-UPS ES 550 FW:843.K2 .D USB FW:K2" rev 1.10/1.06 addr 3 usbdevs -v: port 1 addr 2: low speed, power 2 mA, config 1, Back-UPS ES 550 FW:843.K2 .D USB FW:K2(0x0002), APC(0x051d), rev 1.06, iSerialNumber 4B1004P9325 sysctl hw.sensors.upd0: hw.sensors.upd0.volt0=0.00 VDC (battery nominal volt) hw.sensors.upd0.volt1=0.00 VDC (battery current volt) hw.sensors.upd0.indicator0=Off (battery charging) hw.sensors.upd0.indicator1=Off (battery discharging) hw.sensors.upd0.indicator2=On (battery present) hw.sensors.upd0.indicator3=Off (shutdown imminent) hw.sensors.upd0.indicator4=On (acpower present) hw.sensors.upd0.percent0=0.00% (battery load) And for comparison here are the numbers from NUT: battery.voltage: 13.5 battery.voltage.nominal: 12.0 battery.charge: 100 ups.status: OL ups.load: 5 -- James Turner
