โApr-29-2016 11:21 AM
โMay-01-2016 09:12 PM
red31 wrote:
view star 20A would be more than adequate for 200 watts
http://www.amazon.com/EPsolar-Viewstar-VS2024BN-Battery-Controller/dp/B00N4PTJWI
โMay-01-2016 08:54 PM
johnm1 wrote:
Smketter ... thanks for that. I think I'm sort of, kind of, starting to understand ... a little. I've been pondering the Bogart 2030 (?) units for the PWM charge controller and battery monitor (sorry, on cellphone and don't have part #'s) since they talk to each other which is nice.
Just so much info out there and lots of people disagree on what's best for this or that. It's hard to find my way through the forest sometimes.
โMay-01-2016 07:30 PM
โMay-01-2016 07:26 PM
johnm1 wrote:
Smketter ... thanks for that. I think I'm sort of, kind of, starting to understand ... a little. I've been pondering the Bogart 2030 (?) units for the PWM charge controller and battery monitor (sorry, on cellphone and don't have part #'s) since they talk to each other which is nice.
johnm1 wrote:
Just so much info out there and lots of people disagree on what's best for this or that. It's hard to find my way through the forest sometimes.
โMay-01-2016 07:19 PM
โMay-01-2016 06:06 PM
Almot wrote:
45A array won't generate 45A on 30A PWM, but having oversized array - with this particular controller - will be beneficial in low-light conditions. With PWM you normally have to under-size by 20%, but Trimetric monitor will clip the excess current, so you can over-size.
PWM with 12V bank "favors" low-wattage arrays. You have to use 12V panels and wire parallel only. With arrays larger than 300W this becomes awkward. Besides, there are fewer 12v panels on the market now, less choice, more $/W.
The OP with his planned 100-200W portable - he says there is always some sun within 20ft - will be fine with PWM. I would stay within 100W though. Too much weight and bulk.
โMay-01-2016 05:52 PM
โMay-01-2016 05:20 PM
โMay-01-2016 04:36 PM
โMay-01-2016 04:06 PM
Almot wrote:
Partial shade - spatial not temporal - may affect MPPT more than PWM, if it's a single panel or 2 panels in series.
โMay-01-2016 03:53 PM
โMay-01-2016 03:13 PM
johnm1 wrote:
I've been pondering the Bogart 2030 (?) units for the PWM charge controller and battery monitor
johnm1 wrote:
Just so much info out there and lots of people disagree on what's best for this or that.
โMay-01-2016 03:03 PM
โMay-01-2016 02:58 PM