outback charge controller- alternatives?

Posted by Bates Abbott on April 02, 2007, 12:18:52 PM

outback charge controller- alternatives?
Hi newbee here. I have a selection of 12v and 24v panels totaling aprox max current of 25 amps. Is there another charge controller apart from the outback mx60 which would let me plug in both 12 and 24v panels? Do I need the mppt version?
 

Posted by James Cormican on April 02, 2007, 12:40:01 PM

Re: outback charge controller- alternatives? (Reply #1)
put the 12v and 24v modules on different controllers.  try to keep like (exactly the same) modules together for mppt controllers.  otherwise use pwm/pwm shunt controllers. 
that is what i would do if I had a mixed array.  tell us exactly what you've got and we'll chime in on the best setup.

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Posted by Bates Abbott on April 06, 2007, 05:52:20 PM

Re: outback charge controller- alternatives? (Reply #2)
hi, i was told in the uk that the outback could take varying voltage panels, is this incorrect? Am at present in usa, am getting someone back home to look and collect info on my panels. Not sure I understand difference between mppt nad pwm shunt controllers. thanks bates
 

Posted by Gary C on April 16, 2007, 07:14:21 PM

Re: outback charge controller- alternatives? (Reply #3)
Hi, James, I have 6 SBM solar panels in different specification.
(1)45W, 15.0V, 3.0A
(2)65W, 15.4V, 3.87A
(3)42W, 15.0V, 2.6A
(4)60W, 17.5V, 3.37A short circuit current 3.87A
(5)50W, 17.0V, 3.2A
(6)50W, 17.0V, 3.2A
I also bought PVX-340 Sealed AGM Battery from here last week. What is suitable outback charge controller I may look for? I am not sure those modules should in parallel or in series to outback charge controller, which is better?

Can you help?
Thanks.
« Last Edit: April 16, 2007, 07:20:02 PM by Gary Cheung »
 

Posted by James Cormican on April 18, 2007, 02:30:51 PM

Re: outback charge controller- alternatives? (Reply #4)
i would keep the thin film separate from the others.
don't series modules that are not the same.
use mppt for like strings.

what does sbm mean?  why are there two groups (5) and (6) with the same characteristics.

if you are going to put a bunch of different stuff together, i would use something like a tristar 60, or c60.  i still would not put the thin film with the rest.

if you end up with a few charge controllers, i would use something like a battery distribution block to manage the impending spaghetti of wires.

hope that helps, feel free to give more info, including make and model of modules.

- james Alt-E staff

AltE
"Making Renewable Do-able"
http://www.altEstore.com/

Tel: 877.878.4060 x107  or +1.978.562.5858 x107
Fax: 877.242.6718  or +1.978.562.5854
 
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