[Nut-upsuser] [Eaton ex-MGE Ellipse ASR] Disable automatic battery test

Arjen de Korte nut+users at de-korte.org
Tue Oct 12 08:09:35 UTC 2010

Citeren Arnaud Quette <aquette.dev op gmail.com>:

> the only thing I can see (apart from changing for a more feature full unit)
> is to lower the trigger level from 30 % to 20 % so that these tests do no
> result in a shutdown. If the software is still NUT, you can simply change
> the low battery level using "lowbatt=value" in ups.conf

Note that the above only works if you're using the 'mge-shut' or  
'mge-utalk' drivers. If you're using the 'newmge-shut' or 'usbhid-ups'  
driver, you might try if the UPS allows setting this value by using  
'upsrw' to change the value of 'battery.charge.low'.

Having said that, a UPS that triggers a low-battery warning during a  
weekly test is suspect of having a faulty battery. A weekly test runs  
the UPS on battery for only a handful seconds (typically 5-10  
seconds). If it can't keep up that long without triggering a  
low-battery warning, it most certainly won't have enough capacity left  
for a clean shutdown of the attached systems if the power really  
fails. So either the battery is worn out or the load on the UPS is too  

Best regards, Arjen
Please keep list traffic on the list (off-list replies will be rejected)

More information about the Nut-upsuser mailing list