[RE-wrenches] Charging Multiple Battery Banks

[Jeremy Rodriguez]

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
>> 
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