As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT RECEIVED BATTERY DISCHARGING ALERT, BATTERY VOLTAGE WAS 29V. DIVERTED TO TPA. AFTER LANDING GOT: BATTERY CHARGER INOP ALERT. FACT: TROUBLESHOT PER FIM 24-30-01. REMOVED AND REPLACED EPCU PER MM 24-08-01-4. PERFORMED RTS PER MM 24-08-01-5. REMOVED AND REPLACED RELAY R2-5784 PER SMP AS PRECAUTIONARY.