26V/36 cells =3D 0.72 V/celkl. Not in LEO and not triple junction and not GaAs so no. 24V panel will output 26V into a 24V lead acid battery. So, if he is measuring these while bttery connected then they ARE 24V panel= s. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .