24V battery and mono-or polycrystalline panels
•Minimum number of cells in series :72(2 X 12V panel in series or one 24V panel).
•Recommended number of cells for highest controller efficiency:144 cells (4 x 12V panel in series or 2 x 24V).
•Maximum:216 cells (6 x 12V or 3 x 24V panel in series).
48V battery and mono-or polycrystalline panels
• Minimum number of cells in series :144 (4 x 12V panel in series or 2 x 24V panel).
Remark: at low temperature the open circuit voltage of a 216 cell solar array may exceed 150V, depending on local conditions and cell specifications. In that case the number of cells in series must be reduced.
Many MPPT solar controller
are located in Guangzhou China, such as Hanfong New Energy, Winiversal, Gamatong. More addition can send email to firstname.lastname@example.org .