As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/LGA - FLT 6380 - DURING TAXI AT 1200 HOURS ON 7-2-97, AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS DUE TO NR 2 BATTERY OVERTEMP WARNING ILLUMINATED. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 2 BATTERY. OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)