As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THE EMERGENCY BATTERY CHARGE CONTACTOR FAULT LIGHT CAME ON. WHEN RESET ALL ELECTRICAL EQUIPMENTS IN THE COKPIT STARTED TO FLICKER. THE ACFT WAS REMOVED FROM SERVICE. R & R BPCU. THE OPS TEST WAS SATISFACTORY JIC 24-46-83. THE ACFT WAS RETURNED TO SERVICE.