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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello, Wrenches…
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">This 30% is usually an absolute max. Optimum would be dependent on the battery chemistry but is usually about 10-20% C20 Rate. The Optimum has to do with
absorb time, rather than what the battery can take as, once past the bulk stage the battery is going to “self-regulate” how much current it can accept. With a voltage controlled charger such as most of the RE inverters/controllers (Schneider, Outback, Magnum,
Midnite, and SMA), deep cycle batteries are basically large capacitors, you can over charge voltage, but you can’t really push more current (At least a healthy battery) than a battery can store.
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It’s during the bulk stage that it’s important to limit the amount of current as excessive current will cause problems with the plates, welds, or separators.
Too much heat will warp the plates, which can eventually cause premature failure.
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Most batteries can accept up to that 30%, but battery temp compensation should be used, as a BTS will help limit the amount of current/voltage the battery sees
during that bulk/absorption stage. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It’s important to make sure you check with the battery manufacture for what their minimums and maximums are before install.
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org]
<b>On Behalf Of </b>Eric.Bentsen@schneider-electric.com<br>
<b>Sent:</b> Tuesday, October 01, 2013 11:11 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> [RE-wrenches] Fw: Ever seen flooded battery charging parameters like this?<o:p></o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif""><br>
Hi Guys,</span> <br>
<br>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Calling for 30% C for max charge current on flooded batt. Pretty aggressive don't you think?
</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Even more strange is the spec for 2V cells. They call for 20% for flooded but only 15% for gel/AGM? usually gel/agms take HIGHER max charge rate than flooded don't they?
</span><br>
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Thanks,</span> <br>
<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Eric</span> <br>
<span style="font-size:10.0pt;font-family:"Arial","sans-serif""><br>
</span><span style="color:green">_____________________________________________________________________________________</span>
<br>
<b><span style="font-size:7.5pt;font-family:"Arial","sans-serif""><br>
Eric Bentsen</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif""> | <b><span style="color:green"> Schneider Electric
</span> | Solar Business</b> | <b>UNITED STATES</b> | <b>Technical Support Representative</b>
<b><br>
Phone:</b> +(650) 351-8237 ext. 001# | <b><br>
Email:</b> </span><a href="mailto:eric.bentsen@schneider-electric.com"><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">eric.bentsen@schneider-electric.com</span></a><span style="font-size:7.5pt;font-family:"Arial","sans-serif""> |
<b>Site:</b></span><a href="http://www.schneider-electric.com/solar" target="_blank"><span style="font-size:7.5pt;font-family:"Arial","sans-serif""> www.schneider-electric.com/solar</span></a><span style="font-size:7.5pt;font-family:"Arial","sans-serif""> |
<b>Address:</b> 250 South Vasco Rd., Livermore, CA 94551 <br>
<u><span style="color:blue"><br>
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</span><o:p></o:p></p>
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<p><font style="FONT-SIZE: 14pt" face="Tahoma"><strong>Steve Higgins<br>
<font style="FONT-SIZE: 12pt">Technical Services Manager</font><br>
</strong></font><font face="Tahoma"><strong></strong></font><font face="Tahoma"></font><font face="Tahoma">M: +1.206.790.5840<br>
</font><font face="Tahoma">F: +1.902.597.8447<br>
</font><font color="#ff0000" face="Tahoma"><strong style="FONT-FAMILY: tahoma; TEXT-DECORATION: "><font color="#d30000">Surrette Battery Company</font><br>
</strong></font><font style="FONT-SIZE: 10pt" face="Tahoma">Exclusive manufacturer of<br>
<a href="http://www.rollsbattery.com"><img border="0" hspace="0" src="cid:rolls0f462c"></a></font></p>
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