As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7756 -IN FLIGHT, CREW REPORTED BATTERY NR 2 OVERTEMP. CREW PERFORMED QRH WAS 59 DEGREES CELSIUS, DURING LANDING BATTERY TEMP INCREASED SLOWLY TO 70 DEGREES CELSIUS. CREW RECOMMENDED TO SHUT ALL POWER. FIRE TRUCKS WERE CALLED UPON LANDING BUT CREW NEVER DECLARED EMERGENCY. MX REMOVED AND REPLACED NR 2 BATTERY, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED TO RETURN FOR SERVICE.