Maximum open circuit PV voltage:100V.
The controller can be used with any PV configuration that satisfies the three above mentioned conditions.
12V battery and mono-or polycrystalline panels
•Minimum number of cells in series :36(12V panel).
•Recommended number of cells for highest controller efficiency:72 (2 x 12V panel in series or 1 x 24V).
•Maximum:144 cells (4 x 12V or 2 x 24V panel in series).
24V battery and mono-or polycrystalline panels
• Minimum number of cells in series :72 (2 x 12V panel in series or 1 x 24V panel).
Remark: at low temperature the open circuit voltage of a 144 cell solar array may exceed 100V, depending on local conditions and cell specifications. In that case the number of cells in series must be reduced.