So the actual problem is the nominal battery value being used to scale the graphics?
I don't think there's anything that the driver can do about this. Perhaps the graphics should use a dynamic scale instead of a fixed scale (there are many other models out there reporting nominal voltages of 12V and then ~2V for the current battery voltage). I don't exactly know who maintains that part of NUT. Please keep the list CC:ed. Regards, On Wed, Oct 8, 2008 at 8:38 PM, Luiz Angelo Daros de Luca <[EMAIL PROTECTED]> wrote: > Hello Carlos, > > This information I got from Lacerda that assembles this UPS: > > "2.27V is the voltage when the battery is being recharged. This is constant > until AC goes off. > In one or two minutes" (while capacitors/some other thing are unloading?) ", > it drops to 2.05V and keeps this way > stable for some time until it starts to drop slowly." I didn't used it until > battery is low but, according to Lacerda, > the UPS shuts down automatically at 1.75V. > > However, as the nominal battery is 240V, NUT battery graphic is not very > useful. I uses an scale up to 240V and > 2.27V (AC on) or 2.0xV (AC off) is not visible. If I divide the nominal > voltage (hack) by 120, NUT avoids to generate a graphic. > The only situation that looks better was when I multiplied 2.xx by 120. I > also tested dividing nominal voltage by 20 and multipling battery voltage by > 6 to get 12V but I think this is worse as it's not equal to neither values > (and needs two modifications). > > Which solution is the best? Hack the graphics, the nominal voltage or the > voltage measure? There is an LCD in front of the UPS that shows some > information and it does the "120 times" trick with the battery voltage. > > Thanks, > > 2008/10/7 Carlos Rodrigues <[EMAIL PROTECTED]> >> >> On Mon, Oct 6, 2008 at 11:00 PM, Luiz Angelo Daros de Luca >> <[EMAIL PROTECTED]> wrote: >> > To top it up, I command returns an empty string, which would help "a >> > lot" to >> > identify it. >> >> Onle a few models return anything for the "I" command, unfortunately. >> >> > 1) Is 2.27V plausible for battery voltage or should it be 13,62V? >> >> Many manufacturers choose to output the cell voltage instead of the >> battery voltage. No docs I have ever seen mention anything about what >> the battery voltage should be, so this isn't either right or wrong. >> >> > 2) Is 240V plausible for battey nominal voltage or should it be 12V? >> >> See 1). >> >> > 3) Wich can I consider battery full? 2.27V or 2.06V? >> >> Whichever gives you 100% charge when connected to mains (in this case, >> 2.27V). >> >> > 4) Any tips to solve this problem? Divide and multiply inside megatec >> > driver? Is there any chance to some UPS hacks in megatec driver >> > (parameters >> > in config file) get upstream? >> >> A line could be added to the driver with that model's voltage values >> (since the nominal battery voltage is different from any of the >> others), but just using the "battvolts" parameter in the config file >> is the recommended way to go. >> >> If you also tell me the low battery voltage I'll add that model to the >> compatibility list with a reference to the correct "battvolts" values. >> >> Regards, >> >> -- >> Carlos Rodrigues > > > > -- > Luiz Angelo Daros de Luca > [EMAIL PROTECTED] > ICQ: 19290419 > > I Know, "Where you wanted to go today", > but I decided to stop here instead! > MS Windows > -- Carlos Rodrigues _______________________________________________ Nut-upsdev mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/nut-upsdev
