[RE-wrenches] Charging Multiple Battery Banks

[Jerry Shafer]

OK wrenches here me out, yes this does work simple path of least
resistance. I did this for a alarm system, 1 PV array connected to two OB
MX-60's both get the the same array leads and one went to AGM's and the
other went to FLA L-16's, mine were all 48 volt banks but i dont see that
being an issue. I set the volts and max amps where i wanted. Once the the
AGM's get full the CC just stoped feeding it and instead it flows to the
L-16's. Now if the L-16's are low in the AM, that CC will feed them first
until current drops enough then its picked up by the AGM's. You will just
have to try it to see  but if you need put a contactor on the output thats
voltage controlled. Untill you try it and get the CC's set it is hard to
beleave but it works
Jerry
On Mar 24, 2015 3:54 PM, "Kevin Pegg" <kpegg at energyalternatives.ca> wrote:

>  Interesting! I was head-scratching as to how to do an identical task.
> I'd think a contactor on the HV PV output side suitably rated for
> voltage/current triggered by the aux output once the Classic goes into
> float would do the trick. I recall the Classic has that feature but never
> used it yet.
>
> Kevin
>
> -----Original Message-----
> *From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org]*On
> Behalf Of *Jeremy Rodriguez
> *Sent:* March 24, 2015 5:11 PM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Charging Multiple Battery Banks
>
> The thought was to charge the batteries for a new building utilizing an
> SW4024 with new classic controller and new L A batteries, and once those
> batteries are charged send the PV to the house system which is the 48v
> setup with dual outback inverters and dual SB3048 CCs.  Lead acid batteries
> as well. 3 years old
> I've never had this come up in 16 years!
>
>
> Jeremy Rodriguez
> All Solar, Inc.
> 1463 M
> Penrose Colorado 81240
>
> Sent by Jeremy's iPhone. Sorry for typos and shorthand!
>
> On Mar 24, 2015, at 5:31 PM, "Ray Walters" <ray at solarray.com> wrote:
>
>  What's the reasoning behind two different battery banks at different
> voltages? What is the other equipment involved: batteries type, age,
> inverters, etc.?
>
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer,
> Licensed Master Electrician
> Solar Design Engineer303 505-8760
>
> On 3/24/2015 5:07 PM, Jeremy Rodriguez wrote:
>
> It would be 2kw of PV
>
> Jeremy
> All Solar
> Penrose, CO
>
>  ------------------------------
> Date: Tue, 24 Mar 2015 12:17:20 -1000
> From: jerrysgarage01 at gmail.com
> To: re-wrenches at lists.re-wrenches.org
> Subject: Re: [RE-wrenches] Charging Multiple Battery Banks
>
>  How big of a system are you looking at as some of the smaller charge
> controllers are auto sensing
> Jerry
>
> On Tue, Mar 24, 2015 at 12:11 PM, Jeremy Rodriguez <allsolarjeremy at msn.com
> > wrote:
>
>  Wrenches,
> I have a client that wants to charge a 24v battery bank and a 48v bank
> with the same array. Different charge controllers, with some type of relay
> is what I was thinking, and using the controller's aux. 12v output for the
> relay control.
> The primary battery to be charged would be the 24v bank, then once it is
> fully charged, divert the pv to the secondary controller at the 48v bank.
>
> Any comments or recommendations on this would be helpful.
>
> Jeremy Rodriguez
> All Solar Inc.
> Penrose, CO
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at 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
>
>
>
>
> _______________________________________________ List sponsored by Redwood
> Alliance List Address: RE-wrenches at 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
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at 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
>
>
>  _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at 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
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at 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
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150324/d92a1bd9/attachment-0002.html>