Select the panel you want to replace
Voc
49.57 V
Vmpp
41.99 V
Isc
16.42 A
Impp
15.24 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
640 W
Cells
132
Bifaciality
80%
The Astronergy CHSM66RNDGF-BH640 is a 640 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.