Re: [Nut-upsuser] Incorrect output.voltage readings : CyberPower AVRG900LCD UPS

*I appreciate both of your prompt responses*! As you suspected, this does appear to likely be the same issue as the actual value returned for UPS.Output.Voltage = *79* (hex) / 121 (decimal) : 0.264668 Entering libusb_get_report 0.266012 Report[get]: (3 bytes) => 12 *79* 00

Re: [Nut-upsuser] Incorrect output.voltage readings : CyberPower AVRG900LCD UPS

Looking at your attached files I would say tgat it IS the same fault and that given the USB ID is the same as other Cyberpower UPS models my fix that has already been merged into the master branch should work! I'm not sure where it is in relation to released packaged binaries but maybe you can

Re: [Nut-upsuser] Incorrect output.voltage readings : CyberPower AVRG900LCD UPS

Running the driver in debug mode with - for 20 seconds or so should provide enough information to determine if the bug is the same as I fixed in the patches Charles mentioned. The only other thing that would be needed is the USB ID because the patch restricted the fix only to the models

Re: [Nut-upsuser] Incorrect output.voltage readings : CyberPower AVRG900LCD UPS

The patch has been merged into the main Git branch, as mentioned here: https://github.com/networkupstools/nut/issues/439 (also suggests why the CP1500... doesn't exhibit the problem) but a new release is still in the works: