As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT THE EMERGENCY BATTERY OVERHEAT EICAS MESSAGE DISPLAYED DURING THE FLIGHT. TEMP EXCEEDED 140 DEGREES. THE FLIGHT CREW RAN THE QRH AND SWITCHED OFF EMERGENCY BATTERY SWITCH. THE FLIGHT CONTINUED TO THE DESTINATION. THE MAINTENANCE TEAM REMOVED THE FAILED E-BATTERY AND INSTALLED AN OVERHAULED UNIT. OPS CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.