[RE-wrenches] FX2000 / Trojan battery question

[Wind-sun.com]

In other words, check your battery voltage under an actual load, one that will be higher amps than any charging sources - such as the panels - coming in.

As William noted, that is a pretty small battery bank for that size inverter and I would suspect they have been hyper-cycled.

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Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
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  ----- Original Message ----- 
  From: William Miller 
  To: RE-wrenches 
  Sent: Thursday, October 01, 2009 8:36 PM
  Subject: Re: [RE-wrenches] FX2000 / Trojan battery question


  Friends:

  A "Low AC Volts" error is very typical for a cave in battery voltage under load.  I've reported in this forum before the propensity of Outback inverters to misreport error conditions.

  4 L-16s is a very small battery bank.  I would not be at all surprised if this was indeed a battery or related wiring problem.

  William Miller





  At 05:18 PM 10/1/2009, you wrote:

    Content-Type: multipart/related;
            boundary="----=_NextPart_000_016B_01CA42E1.ED2C51E0"
    Content-Language: en-us

    Tom,
     
    The L-16's are 6v. So, they all had to be in series to operate at 24v (FX2024 is a 24v inverter).
    Dave
     
    From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of The Office of Tom Duffy
    Sent: Thursday, October 01, 2009 8:53 PM
    To: 'RE-wrenches'
    Subject: Re: [RE-wrenches] FX2000 / Trojan battery question
     
    Bob
    On the other note: Were the L-16s in series or series/parallel? Also were the voltage readings and Hydrometer readings done on an active bank or "at rest" and what were the readings?
     
      Tom Duffy
      Systems Design Engineer

         tom at thesolar.biz
           575-539-2111 X 301

----------------------------------------------------------------------------

    From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of robert ellison
    Sent: Thursday, October 01, 2009 5:40 PM
    To: RE-wrenches
    Subject: [RE-wrenches] FX2000 / Trojan battery question
     
    Just visited a site with a 04 version FX2024 The inverter is shutting down and showing "low AC output voltage" 
    It is hooked to 4 Trojan L-16 G batteries. When i arrived the voltage was 23.8, the other day when i arrived it was 25.5 volts and shut down both times with the same error showing. There are 1050 watts of panels and an MX 60 on the battery bank also. In the past when the batteries went low it would show a low battery error, so i don't expect that is the problem. Loads are minimal
    Disconnecting the battery or starting the generator clears the error.
     
    When i called Outback i was told there was a $250.00 "out of warranty charge" as well as a retail of $1400 for the boards. She also insists it was probably a bad battery bank, or at least needing an eq charge. It just had one 9 days ago. The hydrometer readings are all close and the voltages similar.
     
    Anyone run into this before and have any knowledge on this error? 
     
    On another note, has anyone had any Trojan L-16 G batteries with cell failures? The date code is J8 
    I have had 2 in the last year, one was under warranty and the last one out of warranty.
    Anyone else had this problem or am i just unlucky?
     
    Thanks,
    Bob



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