As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT BATTERY VOLTAGE READ 0 WITH NO CLOCKS. BATTERY CHARGER RELAY RESET 2 TIMES IN-FLIGHT WITH BATTERY VOLTAGE NORMAL AND CLOCKS RETURNED. CHARGER FAILED AGAIN, BATTERY VOLTAGE 0 FOR REMAINDER OF FLIGHT WITH NO CLOCKS. ALL OTHER INDICATIONS NORMAL. REMOVED AND REPLACED BOTH A/C BATTERIES IAW 24-34-01 AND BATTERY CHARGER AS WELL AS THE BATTERY CHARGER RELAY PERFORMED BATTERY CHARGER TEST IAW 24-34, NO DEFECT NOTED.