I posted earlier about a problem with a HP R3000XR that was showing abnormally low charge a couple of days after replacing the battery pack. For those with R3000XRs, the progblem seems to be: (1) while you CAN hot-swap the battery-pack on an R3000XR, the UPS automatically goes into bypass mode when you do so; (2) it doesn't necessarily come OUT of bypass mode after you install the new battery pack; (3) while in bypass mode, it appears it DOES NOT charge the batteries. A couple of days ago, I shut down all the machines on the UPS, powered off the UPS for a couple of minutes, then brought everything back up. The UPS brought the batteries back up to full charge and, so far, has kept them within a couple of percentage points of full ever since (charge level is fluctuating between about 98.3% and 100%). So, it appears NUT doesn't have to recalibrate in any way after swapping out a battery pack; but the UPS itself DOES need to reset. -- Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355 alaric at caerllewys.net alaric at metrocast.net phil at co.ordinate.org Renaissance Man, Unix ronin, Perl hacker, Free Stater It's not the years, it's the mileage.