Thanks, Steve. Parallel operation might be tricky, but I'm sure they have dealt with this before. I'll check it out.
On Tue, Apr 21, 2020 at 12:45 PM Steve Higgins <st...@surrette.com> wrote: > Try these guys... Heard Good things. Not sure how they would work with 4 > in parallel on the same battery bank. > > https://quickcharge.com/selct-a-charge-stationary-chargers.html > <https://mailtrack.io/trace/link/751f313d73ae8c2a19e74ca521cc26c5954fca82?url=https%3A%2F%2Fquickcharge.com%2Fselct-a-charge-stationary-chargers.html&userId=1613865&signature=be80402a587b780f> > > > > > <https://mailtrack.io/trace/link/9d59a4c0f4555dc844ecd9c32c427527efad410b?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=28a0634d1190ead5> > <https://mailtrack.io/trace/link/9d59a4c0f4555dc844ecd9c32c427527efad410b?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=28a0634d1190ead5> > <https://mailtrack.io/trace/link/9d59a4c0f4555dc844ecd9c32c427527efad410b?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=28a0634d1190ead5> > <https://mailtrack.io/trace/link/311c611dcf82a7ccde1f887b33e25cc8cf390717?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=65a80bae1bf676eb> > <https://mailtrack.io/trace/link/311c611dcf82a7ccde1f887b33e25cc8cf390717?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=65a80bae1bf676eb> > <https://mailtrack.io/trace/link/572cb12db148382620b80edca516e57a5e4f8747?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=0001dea60b254627> > <https://mailtrack.io/trace/link/572cb12db148382620b80edca516e57a5e4f8747?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=0001dea60b254627> > <https://mailtrack.io/trace/link/572cb12db148382620b80edca516e57a5e4f8747?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=0001dea60b254627> > <https://mailtrack.io/trace/link/06c6215df3394febbd1620384b5205ccca740b82?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=6a278595e1af9721> > <https://mailtrack.io/trace/link/06c6215df3394febbd1620384b5205ccca740b82?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=6a278595e1af9721> > <https://mailtrack.io/trace/link/06c6215df3394febbd1620384b5205ccca740b82?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=6a278595e1af9721> > <https://mailtrack.io/trace/link/ff87973987b1bf4c9dea04dd61358f884c7772f7?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=580299cfa4196eaf> > <https://mailtrack.io/trace/link/ff87973987b1bf4c9dea04dd61358f884c7772f7?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=580299cfa4196eaf> > <https://mailtrack.io/trace/link/ff87973987b1bf4c9dea04dd61358f884c7772f7?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=580299cfa4196eaf> > <https://mailtrack.io/trace/link/da85fb0810b828b0ede00e402954f476c444017f?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=5688702baec59913> > <https://mailtrack.io/trace/link/da85fb0810b828b0ede00e402954f476c444017f?url=http%3A%2F%2Fwww.rollsbattery.com&userId=1613865&signature=5688702baec59913> > Steve Higgins ⋅ Technical Services Manager > t +1.902.597.4020 m +1.206.790.5840 > f +1.902.597.8447 e st...@surrette.com > <#m_3535228063810942375_SignatureSanitizer_SafeHtmlFilter_> > <https://mailtrack.io/trace/link/d5eee52d9bfa637cdf316c5e159ae4066dc03928?url=http%3A%2F%2Fwww.facebook.com%2FRollsBattery&userId=1613865&signature=0b418130a4d439c9> > <https://mailtrack.io/trace/link/d5eee52d9bfa637cdf316c5e159ae4066dc03928?url=http%3A%2F%2Fwww.facebook.com%2FRollsBattery&userId=1613865&signature=0b418130a4d439c9> > <https://mailtrack.io/trace/link/0dfb9e8931e70517774c747de01a19b1530fd5c5?url=http%3A%2F%2Fwww.twitter.com%2FRollsBattery&userId=1613865&signature=adf4ceda01370d9d> > <https://mailtrack.io/trace/link/629c20e61bb07bfa86d9188f5b259a206e1c0890?url=https%3A%2F%2Fwww.youtube.com%2Fuser%2FRollsBattery&userId=1613865&signature=c54c847ba6b4a7e9> > <https://mailtrack.io/trace/link/c3fa97127acc244f9362f192ec76510265e79182?url=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Frolls-battery-engineering&userId=1613865&signature=33cbd35918dbe280> > <https://mailtrack.io/trace/link/6048a007a0795023d574b073fc2774b01d4098d6?url=http%3A%2F%2Fwww.instagram.com%2FRollsBattery&userId=1613865&signature=7f9a70f6407b3c1a> > <https://mailtrack.io/trace/link/6048a007a0795023d574b073fc2774b01d4098d6?url=http%3A%2F%2Fwww.instagram.com%2FRollsBattery&userId=1613865&signature=7f9a70f6407b3c1a> > <https://mailtrack.io/trace/link/61f76eb90498c669b2be5c398d809291cd2ee0a3?url=http%3A%2F%2Fwww.instagram.com%2FRollsBattery&userId=1613865&signature=5af1e9622b504276> > > ------------------------------ > *Become a Certified PV Professional. 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If > you receive this email in error, please contact the sender and delete or > destroy this message and all copies. > ------------------------------ > > > On Tue, Apr 21, 2020 at 9:44 AM RE Ellison <reelli...@gmail.com> wrote: > >> Maybe somebody’s already got this thought in here I didn’t look that >> in-depth >> >> Used to be a good suggestion was to get a couple magnums or heart >> interface inverters and use them strictly as a charger not an inverter >> >> So the inverters you have can keep inverting the generator would feed the >> other inverters that are used strictly as chargers so the transfer switch >> does not function and you don’t get that instantaneous change when it >> crosses over with the transfer switch >> >> Another advantages is if you have a problem you have inverters on site >> that you could wire over to to keep things going >> >> Just a thought, >> Bob Ellison >> >> On Apr 21, 2020, at 12:32 PM, Jason Szumlanski < >> ja...@floridasolardesigngroup.com> wrote: >> >> I'm not sure I follow. I would disconnect the generator AC2 input from >> the existing quad XW system and move it to the external chargers. Or, I >> could just turn the charging off by software config in the XWs. >> >> If I were to buy four inverter/chargers to serve as "external" chargers >> for the battery (any brand, really) I would just connect the generator >> input to AC2 and the battery to the batt terminals of the four inverters. >> The AC1 input/output would have no connections. The inverter function would >> be turned off and the charger function turned on. >> >> Again, this would be an expensive solution. I'm sure there are some >> companies making high output DC chargers. I assume a 48V model will be able >> to go up to 60V charging output, which would be plenty for my 51V nominal >> system. >> >> >> >> >> >> On Tue, Apr 21, 2020 at 11:44 AM Dave Angelini Offgrid Solar < >> offgridso...@sti.net> wrote: >> >>> 4 xw's need the external relay contactors not the internals, Right? >>> >>> You will destroy the internals relays. If there was warranty still left, >>> and there is not on 6048, you would need to scrap them for parts. Xw logs >>> welded relay warnings and faults for warranty on all xw's. >>> >>> *Dave Angelini Offgrid Solar >>> "we go where powerlines don't" >>> http://members.sti.net/offgridsolar/ >>> <https://mailtrack.io/trace/link/1000ae1ce8f2c3b0e4611f7427decfb5b5d40a7a?url=http%3A%2F%2Fmembers.sti.net%2Foffgridsolar%2F&userId=1613865&signature=b1f0d3afa42d4a66> >>> e-mail offgridso...@sti.net <offgridso...@sti.net> >>> text 209 813 0060* >>> >>> On Tue, 21 Apr 2020 08:27:53 -0400, Jason Szumlanski < >>> ja...@floridasolardesigngroup.com> wrote: >>> >>> I actually need 400Adc at 51V nominal of total charge rate. I was hoping >>> to use 100Adc chargers for redundancy, or some combination of 2-8 chargers >>> to reach the needed current, assuming they can be synced up. I don't think >>> the charging algorithm needs to be complicated. We are basically bulk >>> charging the LiPOs to 80% with the battery BMS controlling the generator. >>> The concept is to get to 80% sometime in the night and solar kicks in >>> during the day to reach 100% using 2-stage charging from the XW charge >>> controllers. >>> >>> The problem I have is the quad XW6048s in the system run at a pretty >>> good load typically... often over 50%. This is off-grid with generator >>> backup. The transfer switches in the XW6048 are causing surges and >>> brownouts when the switched loads are high, especially smart dimmers and >>> televisions. I need seamless power for this client. My thought is to >>> abandon the internal chargers in the XW6048s and just run loads off >>> inverter power full-time. I would charge the batteries with external >>> battery chargers. The tricky part is how to adjust the charge rate based on >>> load, and also based on solar input. I need to limit the net charging >>> current. Of course, I still need 400Adc of charging current, which I'm >>> learning might be hard to find. I don't really want to buy four more XWs - >>> that's a pretty expensive solution. >>> >>> Jason Szumlanski >>> Florida Solar Design Group >>> >>> >>> On Fri, Apr 17, 2020 at 4:26 PM Dave Angelini Offgrid Solar < >>> offgridso...@sti.net> wrote: >>> >>>> I use the CSW 4048. It has a 50 amp charger. A good spare for clients. >>>> Get 2 of them. Repurpose an old Radian or XW well over 100A. XW+ is 140adc. >>>> >>>> *Dave Angelini Offgrid Solar* >>>> >>>> *"we go where powerlines don't" >>>> http://members.sti.net/offgridsolar/ >>>> <https://mailtrack.io/trace/link/15506a57ff1e01606f7be6e8d256e9fc082576bb?url=http%3A%2F%2Fmembers.sti.net%2Foffgridsolar%2F&userId=1613865&signature=fdbbadb371b7cf15> >>>> e-mail offgridso...@sti.net <offgridso...@sti.net> >>>> text 209 813 0060* >>>> >>>> On Fri, 17 Apr 2020 14:21:14 -0400, Jason Szumlanski < >>>> ja...@floridasolardesigngroup.com> wrote: >>>> >>>> I'm looking for a standalone 51V nominal battery charger suitable for a >>>> LiPO battery with 2-stage charging and adjustable setpoints for max current >>>> and battery voltage. It would require dual chargers with 100A capacity (I >>>> want dual chargers for redundancy so I have at least 50% capacity if one >>>> goes bad). Ideally they would sync up so they change stages simultaneously, >>>> but I'm not sure if that's really important. >>>> >>>> Who makes something like that? >>>> >>>> Jason Szumlanski >>>> >>>> >>>> >>>> _______________________________________________ >>>> List sponsored by Redwood Alliance >>>> >>>> List Address: RE-wrenches@lists.re-wrenches.org >>>> >>>> Change listserver email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> <https://mailtrack.io/trace/link/7f50a0eadda0cb3de5a897432d4ff4ae2b5a5ff6?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=2c5ff46b6702a0b2> >>>> >>>> List-Archive: >>>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>>> <https://mailtrack.io/trace/link/5bd53fe813189e2266b6538ca606b966ecc72e15?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html&userId=1613865&signature=7208ccc85f648335> 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