[RE-wrenches] Charging Multiple Battery Banks
Tump
tump at swnl.net
Wed Mar 25 13:00:33 PDT 2015
Try looking at the New Midnite Kid, allows for two parallel charge controllers off the same input.
I too have systems that I use 2 CCs for alarm systems pull the 2nd CC "PV source input" from the 48 VBB and charge the 24 VBB. disable MPPT
I will also agree RU outta of yer mind? Yep the SW 4024s were.... that is were!, work horses but not to many around. can you say a ticking Tbomb if this is powering a load in some remote place w/ hi customer expectations
On Mar 25, 2015, at 1:24 PM, Ray Walters wrote:
> Hi Jeremy;
>
> I usually would combine both buildings all into one system, KISS principle, and also less cost. Later when those batteries die, replace with a properly sized bank. I also wouldn't be building a new system around an SW4024, those are getting really dated. Great inverter, but they don't last forever. They have excellent resell value on Ebay for folks that need replacements in dual and quad systems.
> Having said that, Jerry's idea of 2 controllers on one array sounds like it would work, but not with Blue Sky because of the grounding as Larry mentioned.
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer,
> Licensed Master Electrician
> Solar Design Engineer
> 303 505-8760
> On 3/25/2015 10:36 AM, Larry wrote:
>> Keep in mind that the Midnite controller has a combined PV and bat. negative and the Blue Sky requires isolated PV and bat. negative.
>> Larry Crutcher
>> Starlight Solar Power Systems
>> On 3/24/15 6:11 PM, Jeremy Rodriguez wrote:
>>> 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 Engineer
>>>> 303 505-8760
>>>> 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
>>>
>>
>>
>>
>> _______________________________________________
>> 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
>
> Tump at swnl.net www.SWNL.net
> Solarwinds Northernlights
> Serving Mid Coast Maine & Northern California
> 207-832-7574 Cl. 610-517-8401
> Blair "TUMP" May
> ******** MAINE'S CHARTER ********
> NABCEP "Certified PV Installer"
>
> ******** MAINE'S CHARTER ********
> Trace Xantrex "Certified" Dealer / Installer"
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20150325/8a947dff/attachment-0002.html>
More information about the RE-wrenches
mailing list