Wrenches 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. Jerry
On Thu, Dec 3, 2020, 7:41 AM <[email protected]> wrote: > Wanted to share my experience with the SMA SunnyBoyStorage (SBS) with the > LG and BYD battery combo. > > > > 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) > > > > SMA stated that the BYD and its true 400V internals would provide the > continuity for the system to operate as first advertised. > > > > The BYD certainly addressed the lights going out during backup ops but the > two remaining LG batteries just won’t recharge during backup operations. > They will discharge and discharge but no recharge from PV power during > backup. > > > > SMA will not even return emails at this point as I’ve 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. > > > > I’m guessing the indemnity / no-sue paperwork that SMA insisted I sign > before they provided the BYD is their card to cease technical > support…beware 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’d have the full force and reputation of SMA to carry me into the > future. > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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