Drake, I’ve run into this problem numerous times in the last year, as I’ve had a number of off-grid customers that I have upgraded from legacy 12V or 24V systems to 48V. Left behind are often things like expensive DC fridges and DC heating pumps. I’ve searched for converters a number of places and have found that eBay (and Amazon) have a ton of DC-DC converters available. Yes they are Chinese, and the many different brands seem to be clones of one another, so It’s hard to pick one with confidence. I was suspicious of them at first, but have several out in the field that have worked well for some time now. Most are in the 10-20A output current range, but there are bunch of different voltage configurations available. Just do a search on eBay with your desired voltages and you’ll pull something up. For the 48-12V conversion range, the solution I’ve settled on is golf cart DC-DC converters, which tend to be high quality and are designed to run 12V lights and accessories from 48V golf cart battery banks. I find these on eBay as well and have had great luck with them.
-Luke Luke Christy NABCEP Certified PV Installation Professional™: Solar Gain Services, LLC PO Box 531 Monte Vista, CO. 81144 sgsrenewab...@gmail.com <mailto:sgsrenewab...@gmail.com> 719.588.3044 www.sgsrenewables.com <http://www.sgsrenewables.com/> > On Sep 15, 2018, at 8:58 AM, Drake <drake.chamber...@redwoodalliance.org> > wrote: > > Since Solar Converters seems to have evaporated, I'm not sure where to look > for a 48 to 24 V DC to DC converter. Samplex has 24 to 12. It seems like > someone mentioned a Canadian company that makes these. > > I need to step down power from a 48 V battery bank to power El Sid pumps for > an offgrid hydronic heating system. > > Thanks, > > Drake > > <>Drake Chamberlin > Athens Electric LLC > OH License 44810 > CO License 3773 > NABCEP Certified Solar PV > 740-448-7328 > http://athens-electric.com/ <http://athens-electric.com/> > > _______________________________________________ > 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 > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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