The Problem:
2x2 Phaesun Solarpanels with 2x215W Pm each bank (Starboard/Port)
2 Battery banks
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electrician said I should skip my BlueSolar MPPT 150/35 (I have it in stock) and use
2x BlueSolar DUO 12/20 to avoid problems due to different voltage inputs from the panels.
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Previously I had 4 Batteries and he connected one DUO output to each battery...
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The new setup has only two banks.
QUESTION:
Can I connect the two DUO' directly to the batteries. This will connect DUO1/1 with DUO2/1 and DUO1/2 with DUO2/2
To simplify it: can I connect the DUO' together to shorten the cables?
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My assumption is that the chargers will confuse themselfes..
What shall I do?
1) remove one DUO? Measured chargin amperage goes up to 12+18 Amps sometimes
2) OR use the MPPT instead
3) OR use the DUOS according to the scheme below?
BlueSolarDUO.jpg
Thank you for assistance.
willi