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    John,<br>
    <br>
    Could you clarify units? "0.418 Liters/AH" is that per charge cycle?
    per hour? per minute? per cell?<br>
    <pre class="moz-signature" cols="72">Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a>
</pre>
    <br>
    <br>
    On 1/5/2012 4:18 PM, John DeBoever wrote:
    <blockquote
cite="mid:CC4E5D1C542D8C4C9CBEE800875F05354776A0C7@Trojmail1.trojanbattery.com"
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        <p class="MsoPlainText"><span style="color:#1F497D">Hello
            Wrenches,<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Here are
            some very general guidelines on the subject for
            consideration:<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText"
          style="margin-left:.25in;text-indent:-.25in;mso-list:l0 level1
          lfo1">
          <!--[if !supportLists]--><span
            style="font-family:"Courier New";color:#0070C0"><span
              style="mso-list:Ignore">o<span style="font:7.0pt
                "Times New Roman"">  
              </span></span></span><!--[endif]--><b><span
              style="color:#0070C0">Free flow ventilation is required
              within lead acid battery room / enclosure:<o:p></o:p></span></b></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Batteries
            produce Hydrogen during charge, depending on the specific
            design and application<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">The gassing
            appears approximately around 80%-90% SOC, depending on the
            specific design and application<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">The amount
            of gassing increase with the battery ageing<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Hydrogen
            becomes explosive at a concentration of 4%<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Hydrogen
            levels must be kept below 1% or 2% percent<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Flooded
            batteries typically produce .418 Liters/AH of Hydrogen at
            STC, depending on the specific design and application<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">VRLA
            batteries typically produce .004 to .013 Liters/AH of
            Hydrogen at STC,  depending on the specific design and
            application<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText"
          style="margin-left:.25in;text-indent:-.25in;mso-list:l0 level1
          lfo1">
          <!--[if !supportLists]--><span
            style="font-family:"Courier New";color:#0070C0"><span
              style="mso-list:Ignore">o<span style="font:7.0pt
                "Times New Roman"">  
              </span></span></span><!--[endif]--><b><span
              style="color:#0070C0">Cleaning maintenance guidelines:
              <o:p></o:p></span></b></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Batteries
            are attract dust, dirt, and grime. Keeping them clean will
            help one spot trouble signs if they appear and avoid
            problems associated with grime.<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">1. Check
            that all vent caps are tightly in place.<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">2. Clean the
            battery top with a cloth or brush and a solution of baking
            soda and water. When cleaning, do not allow any cleaning
            solution, or other foreign matter to get inside the battery.
            <o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">3. Rinse
            with water and dry with a clean cloth.
            <o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">4. Clean
            battery terminals and the inside of cable clamps using a
            post and clamp cleaner. Clean terminals will have a bright
            metallic shine.<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">5. Reconnect
            the clamps to the terminals and thinly coat them with
            petroleum jelly (Vaseline) to prevent corrosion.<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">6. Keep the
            area around batteries clean and dry.
            <o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">Hope this
            help,<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D">John<o:p></o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size:10.0pt">John F.
            DeBoever<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:10.0pt">Global
            Projects & Technical Director – Renewable Energy<o:p></o:p></span></p>
        <p class="MsoNormal"><b><span style="font-size:10.0pt">Trojan
              Battery Company<o:p></o:p></span></b></p>
        <p class="MsoNormal"><span style="font-size:8.0pt"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt">12380 Clark
            Street <o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt">Santa Fe
            Springs, CA 90670<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt" lang="FR">Tel:
            +1-562-236-3000 Ext. 3139<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt" lang="FR">Cell:
            +1-845-514-7600 – NY office time zone: USA EST (GMT-5)<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size:9.0pt" lang="FR">Fax:
            +1-562-236-3239<o:p></o:p></span></p>
        <p class="MsoNormal"><a moz-do-not-send="true"
            href="mailto:jdeboever@trojanbattery.com"><span
              style="font-size:9.0pt" lang="FR">jdeboever@trojanbattery.com</span></a><span
            style="font-size:9.0pt" lang="FR"><o:p></o:p></span></p>
        <p class="MsoNormal"><a moz-do-not-send="true"
            href="http://www.trojanbattery.com/"><span
              style="font-size:9.0pt" lang="FR">www.trojanbattery.com</span></a><span
            style="font-size:9.0pt" lang="FR"><o:p></o:p></span></p>
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style="font-size:16.0pt;font-family:Chalk;color:#953735;mso-style-textfill-fill-color:#953735;mso-style-textfill-fill-alpha:100.0%">   
            Happy Holidays</span><span style="font-size:16.0pt"
            lang="FR"><o:p></o:p></span></p>
        <p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span lang="FR"><o:p> </o:p></span></p>
        <p class="MsoPlainText"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoPlainText">-----Original Message-----<br>
          From: <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
          [<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf
          Of bob ellison<br>
          Sent: Thursday, January 05, 2012 12:18 PM<br>
          To: 'RE-wrenches'<br>
          Subject: Re: [RE-wrenches] battery venting; Corrosion</p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">I have had great luck by heating
          Vaseline to the hot liquid state then brush it on all the
          exposed lead and I dip the cable ends also.
          <o:p></o:p></p>
        <p class="MsoPlainText">Doing this I have had 1 terminal that
          got corroded out of several hundreds.<o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">That gets you a thin coat and lasts for
          years.<o:p></o:p></p>
        <p class="MsoPlainText">"Clean and tight" is nice but it gets
          corroded at some point, and I hate cleaning 1 terminal or 20!<o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">Later,<o:p></o:p></p>
        <p class="MsoPlainText">Bob Ellison<o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">-----Original Message-----<o:p></o:p></p>
        <p class="MsoPlainText">From:
          <a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a><o:p></o:p></p>
        <p class="MsoPlainText">[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
          On Behalf Of Larry Crutcher, Starlight Solar Power Systems<o:p></o:p></p>
        <p class="MsoPlainText">Sent: Thursday, January 05, 2012 10:37
          AM<o:p></o:p></p>
        <p class="MsoPlainText">To: RE-wrenches<o:p></o:p></p>
        <p class="MsoPlainText">Subject: Re: [RE-wrenches] battery
          venting; Corrosion<o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">Almost all RV's have a small, poorly
          vented battery box with 4 GC2 batteries. We see corrosion all
          the time. When we replace batteries, we use zinc coated copper
          terminals and apply a thin layer of grease with a toothbrush
          to every exposed portion of the connectors. This simple step,
          with the occasional reapplication, keeps all terminals as
          fresh as the day installed for many years. I am speaking from
          experience of hundreds of installations.
          <o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText">Larry Crutcher<o:p></o:p></p>
        <p class="MsoPlainText">Starlight Solar Power Systems<o:p></o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
        <p class="MsoPlainText"><o:p> </o:p></p>
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