As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A DIVERSION - BATTERY CHARGER LIGHT ILLUMINATED IN FLIGHT. T/S PER FIM 24-30-00 FIG 118. REPLACED BATTERIES PER MM 24-30-02 AND BATTERY CHARGER PER MM 24-34-03. EMERGENCY POWER TEST OK PER MM 24-24-00-5, NO MSG NOTED.