Re: [RE-wrenches] combining 24v and 12v systems

Wrenches I have to agree with Dana, battery imbalance is alway an issue, add in a mid tap load and failure is in your future, l have also seen this done and it never works as you might hope. Jerry On Tue, Dec 31, 2019, 12:46 PM Dan Fink wrote: > I second everyone. Center-tapping a 24 or 48v batt

Re: [RE-wrenches] combining 24v and 12v systems

Agreed: no 12v tap. I’ll add (with modest experience, as this doesn’t come up as an upgrade very often any more) that Mean Well, despite the odd name, proved itself pretty reliable in some early Wattsun tracker drives and some other DC-DC applications. Available online; see https://www.meanwell

Re: [RE-wrenches] combining 24v and 12v systems

Want to kill a battery bank? Go ahead and center tap it! I have seen this way to many times. Lots of really efficient DC to DC converters out there. Dana Orzel Great Solar Works, Inc. C - 208.721.7003 d...@solarwork.com Idaho Contrac

Re: [RE-wrenches] combining 24v and 12v systems

I second everyone. Center-tapping a 24 or 48v battery bank for 12v SEEMS like it should work just fine, especially for low load infrequent use like a 12v water pressure pump for a greenhouse, a weather station, etc.. Nope, I've been a loser every time, with that battery or pair always the first to

Re: [RE-wrenches] combining 24v and 12v systems

Even with battery balancers, battery tapping is still a really bad idea.  I know, I did it on my own system in the 90s.  The DC/DC converters are the way to go, but be sure and over size it by a fair amount to handle the fridge starting surge. Unfortunately my favorites are no longer available:

Re: [RE-wrenches] combining 24v and 12v systems

Hi Chris Agreed. 12v from either a balancer or iota Happy new yr Jay > On Dec 31, 2019, at 8:52 AM, Chris Schaefer wrote: > >  > G'day and Happy New Year to All, > > Recently came across this offgrid OB FX system. The first part is a 12v > battery system w/ 2 PV modules, 2 Trojan L16 bat

Re: [RE-wrenches] combining 24v and 12v systems

Tapping a battery bank is not a good practice. it will unbalance the bank. Much better to add a 24V electronic converter for the 12V loads. Then replace the 12V loads when time permits. They will need a spare converter so buy 2. Amazon has tons of these converters. Your quote is great BTW. H N Y

Re: [RE-wrenches] combining 24v and 12v systems

Chris, I would look into DC / DC converters (many available). Happy New Year Chris and All, Lloyd Lloyd Hoffstatter Sunstruck Consulting Sent from Mail for Windows 10 From: Chris Schaefer Sent: Tuesday, Decemb

[RE-wrenches] combining 24v and 12v systems

G'day and Happy New Year to All, Recently came across this offgrid OB FX system. The first part is a 12v battery system w/ 2 PV modules, 2 Trojan L16 batteries used to power a frig and freezer about 6 years old. The second is a 24v with 3kw of PV, 4 Trojan L16's, twin OB FX inverters installed by