<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr">Hi William</div><div dir="ltr"><br></div><div dir="ltr">I\u2019m wondering what specific batteries you did this test on</div><div dir="ltr"><br></div><div dir="ltr">Thx</div><div dir="ltr">Jay</div><div dir="ltr"><br><blockquote type="cite">On Feb 23, 2021, at 4:32 PM, William Miller <william@millersolar.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff<meta http-equiv="content-type" content="text/html; charset=utf-8">Open the link. It\u2019s all there. <br><br><div dir="ltr">William Miller<div><div>www.millersolar.com</div></div></div><div dir="ltr"><br><blockquote type="cite">On Feb 23, 2021, at 2:32 PM, Howie Michaelson <Howie.Michaelson@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff<div dir="auto">William,<div dir="auto">How much of a difference did you see in readings after an equalize charge before adding water vs. after adding water and doing a short bulk charge?<br>Howie<br><div data-smartmail="gmail_signature" dir="auto">Howie Michaelson<br>Sun Catcher<br>NABCEP Certified Solar PV Installer\u2122<br>Solar Electric & Heat Pumps Systems Sales & Service<br>802-272-0004</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 23, 2021, 5:27 PM William Miller <<a href="mailto:william@millersolar.com">william@millersolar.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_1671636066477944840WordSection1"><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Wrenches:</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">If you recall, I had asked the question: After equalizing batteries, should I check SG before or after watering? I performed the test I had promised to do. The answer is, add water first.</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Here is the report on my test: <a href="https://millersolar.com/MillerSolar/case_studies/26%20Specific_Graviity/Specific_Gravity.html" target="_blank" rel="noreferrer">Link</a></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Conclusion: Here is the proper order of steps to check Specific Gravity:</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">1. Verify water level in cells is above the moss-guard. Add water only to bring water to top of moss-guard if needed.</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">2. Run Equalizing charge.</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">3. Add distilled water to all cells to bring electrolyte to recommended level. </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">4. Apply bulk charge voltage to batteries for 30 minutes to mix electrolyte.</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">5. Test and record Specific Gravity.</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">It seems obvious now, but I had to test it out\u2026</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif"">William</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Miller Solar</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">17395 Oak Road, Atascadero, CA 93422</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">805-438-5600</span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><a href="http://www.millersolar.com/" target="_blank" rel="noreferrer">www.millersolar.com</a></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">CA Lic. 773985</span></p><p class="MsoNormal"> </p><p class="MsoNormal"> </p></div></div>
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