Re: [Apcupsd-users] Batt Charger % Error?

[Dr. D. <dr....@gm...>]

Sorry, the charged voltage rating I listed was for stand-alone or not
connected/charging voltage.  According to Trogen charge the wet cell
to 2.28v/cell which is very close to your spec.

More interesting, as I allowed the system to run on batteries longer,
the % charge went from 100% to 0% in about 5 minutes, then after about
~3 hours starting climbing back up once the system voltage hit about
22.8v!  Eventually ending up at about 25% charge with a voltage of
22.4v before I returned it back to mains!  In the end the system ran
on batteries for about 6 hours with a 70% load on a Smart-UPS 1000.

I believe you are correct on the fact that contacting APC will be the
only solution.  However i have doubts that I will be able to reach
anyone willing to help!

I plan to attempt another calibration after this first deep cycle
(this is a new installation), perhaps the results will be different.

Thanks,
Andy

On 12/18/06, jdow <jd...@ea...> wrote:
> That is VERY different from SLAs which are 2.333 volts per cell give
> or take a tiny bit. If the UPS is designed for SLAs you're in a stinky
> slimey patch which will require VERY careful recalibration of the UPS.
> You had best contact APC about that unless you have the calibration
> procedure present.
>
> I'm also not sure if the UPS reads the voltage under trickle charge or
> open circuit. I note Trogen cites measurements open circuit. So you might
> turn off the loads and pull power when you think the batteries should be
> fully charged. Then measure the battery voltage with an known accurate
> and calibrated voltmeter. If it reads materially less than 25.48 there's
> likely a sick puppy amongs the batteries. It'd pay to check each of the
> four batteries for voltage to find the low one. Then get a replacement
> from Trogen.
>
> If the voltages read correctly check the voltage on all three of the
> working batteries under trickle charge with that accurate voltmeter. Then
> compare those values with the one that does not work.
>
> Putting the data together will tell you if you need to tweak a calibration
> pot or replace a damaged cell.
>
> {^_^}
> ----- Original Message -----
> From: "Dr. Diesel" <dr....@gm...>
>
>
> > According to:
> >
> > http://www.trojan-battery.com/ProductLiterature/GeneralProducts.aspx
> >
> > Deep Cycle Maintenance Brochure,
> >
> > Their batteries are 100% at 6.37V and 10% at 5.75v.  I have (4) in series:
> >
> > Fully charged = 25.48v
> > 10% = 23v.
> >
> > Currently the UPS says 0% charge and 24.2 volts.  It has been running
> > on the batteries for about 1.5 hours!
> >
> >
> >
> >
> > On 12/17/06, jdow <jd...@ea...> wrote:
> >> When you make that declaration, are they working with the Trogen
> >> batteries?
> >> If so what makes you think 27.3 volts is full charge? 28 plus or a couple
> >> tenths sounds more correct. Is there a dead cell in one of the batteries?
> >>
> >> {^_^}
> >> ----- Original Message -----
> >> From: "Dr. Diesel" <dr....@gm...>
> >>
> >>
> >> > Well, I have 4 others just like it, no problems!  It is no different
> >> > than the APC models with optional external batteries.
> >> >
> >> > Are the Eprom values that apctest reads the only available?  Any
> >> > hidded or unsupported values hiding in there somewhere?
> >> >
> >> > Thanks
> >> > Andy
> >> >
> >> > On 12/17/06, Adam Kropelin <akr...@ro...> wrote:
> >> >> Dr. Diesel wrote:
> >> >> > Hello!
> >> >> >
> >> >> > I have a Smart-UPS 1000 that I just installed (4) 225Amp hour Trogen
> >> >> > T105 batteries on.  Currently the UPS says the batts are at
> >> >> > 27.3Volts
> >> >> > and thinks that is only 42% charged!  I know for sure this is in
> >> >> > error.
> >> >> >
> >> >> > I also have a Smart-UPS 600 that thinks 27.1volts is 100%!
> >> >> >
> >> >> > Is there any way to adjust this calibration on the 1000?
> >> >> >
> >> >> > I realize this isn't an apcupsd problem, but am hoping this group of
> >> >> > experts can help!
> >> >>
> >> >> I have to admit I'm not surprised that an unorthodox battery confuses
> >> >> the SmartUPS firmware.
> >> >>
> >> >> --Adam
> >>
> >>
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