crazyk wrote:2 x Suntech STP300-24/Ve Panels
1 x BlueSolar MPPT 150/35-MC4 (48V-35A) Charge controller
Panels are connected in Series
Max power generated = 438Watts (219W x 2)
crazyk wrote:So if I added another 2 panels would it still be just ok with this charge controller? the current is ok but the voltage is only 150V and 4 panels would produce 162.4V potentially. Should I be looking for a bigger unit with more voltage?
crazyk wrote:EDIT: so david why would I choose to put my panels in series and not parallel?
crazyk wrote:EDIT #2: Also with the panels that I have, can I run a 24V battery setup?
Yes fine to add more panels. 2 x panels in series (absolute maximum of 3 panels in series for this controller) for each string and then each string to be in parallel with the existing panels, you can have approx 1700watts of panels using a 48V battery pack with that controller.
There's no point in having more than 3 in series. DON'T use 4 in series it will exceed the maximum voltage the controller is rated for. If you windup with 3 strings of panels in parallel ensure you install correctly rated fuses/CB's in both the positive & negative of each string of panels (AS4509).
crazyk wrote:You mention that I can have approx 1700W with the 150/35 controller........
, so how did you work out 1700W?
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