As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KIN - INFLIGHT MIA-AUA. CREW REPORTED MAIN BATTERY DISCHARGE LIGHT ILLUMINATED IN FLIGHT. FLIGHT DIVERTED KIN LANDED WITHOUT INCIDENT. AUXILIARY POWER UNIT BATTERY AND CHARGER RELOCATED TO THE MAIN SHIPS BATTERY POSITION. APU BATTERY AND CHARGER PLACARD PER MEL. REPLACED APU BATTERY (MPN 018550000) AND CHARGER ON 01/18/2011 AT TUL. SYSTEM GROUND CHECK NORMAL OPERATION.