What was found
DEPARTED AND BEGAN CLIMB TO 11000 FT. ABOUT 20 MINUTES INTO FLT, RECEIVED A BATTERY LIGHT ON CAWS PANEL AND A MASTER CAUTION. CONFIRMED THAT THE NR 1 GENERATOR WAS NOT PUTTING OUT 28 VOLTS & BATTERY DISCHARGING. TURNED OFF ELECTRICAL AIR CONDITIONING & STOPPED BATTERY & IT BEGAN TO CHARGE. AUTOPILOT DISCONNECTED AND YAW DISCONNECTED. RAN EMERGENCY CHECKLIST & ATTEMPTED A GEN 1 RESET BUT IT DID NOT FIX THE PROBLEM. GEN 2 WORKED PROPERLY & OTHER THAN THE AIR CONDITIONING, DID NOT LOSE ANY OTHER ELECTRICAL ITEMS. DECIDED TO RETURN. DID NOT DECLARE AN EMERGENCY. LANDED NORMALLY.