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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>While I do not dispute Jerry\u2019s comment except that it is not a software issue but battery design incompatibility with a battery/not PV inverter (dc to dc converter), my bigger frustration is being told by SMA that the introduction of the BYD as a replacement for one of the three LG Resu units would solve the shortcomings. It has not.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Jerry Shafer<br><b>Sent:</b> Thursday, December 3, 2020 9:54 AM<br><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b>Subject:</b> Re: [RE-wrenches] SMA Sunny Storage with LG and BYD battery: no answer from SMA<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Wrenches<o:p></o:p></p><div><p class=MsoNormal>SMA storage only works with BYD, for what ever the reason (software) LG does not work with the SMA and causes as l recall a glitch when charge to discharge and back to charge.<o:p></o:p></p></div><div><p class=MsoNormal>Jerry<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Thu, Dec 3, 2020, 7:41 AM <<a href="mailto:scot.arey@solarcentex.com">scot.arey@solarcentex.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Wanted to share my experience with the SMA SunnyBoyStorage (SBS) with the LG and BYD battery combo.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>For background, not until installation nearly a year back did we discover that despite early marketing literature claims, the LG batteries would not recharge during backup operations. This was because of the DC to DC converter inside the LG that resulted in SBS losing necessary power during transitions between charging and discharging. Me and another wrench pushed SMA hard and they agreed to provide us at no cost a BYD battery which they said would be the solution and to install that is one battery with LG the remaining two. (this was previously a 3xLG system)<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>SMA stated that the BYD and its true 400V internals would provide the continuity for the system to operate as first advertised.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The BYD certainly addressed the lights going out during backup ops but the two remaining LG batteries just won\u2019t recharge during backup operations. They will discharge and discharge but no recharge from PV power during backup.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>SMA will not even return emails at this point as I\u2019ve inquired if there is another setting to get the BYD and LG to co-exist. As we all know the SMA parameters page is not the easiest to interpret and unfortunately there is not documentation to explain the parameters such that we could make meaningful adjustments.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I\u2019m guessing the indemnity / no-sue paperwork that SMA insisted I sign before they provided the BYD is their card to cease technical support\u2026beware out there. Whenever somebody says they have a better storage mousetrap I always wonder if the system has truly been put through the paces and has necessary tech support. I got burned by an up and coming storage/inverter system one time so when SMA came along with SBS and ABU I thought I\u2019d have the full force and reputation of SMA to carry me into the future.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=294 height=116 style='width:3.0625in;height:1.2083in' id="_x0000_i1025" src="cid:image003.png@01D6C946.CF1434F0"><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. When one doesn't work, try the other:<br><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br><br>Check out or update participant bios:<br><a href="http://www.members.re-wrenches.org" target="_blank">http://www.members.re-wrenches.org</a><o:p></o:p></p></blockquote></div></div></body></html>