As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BNA - INFLIGHT DCA-DFW. BATTERY CHARGER ILLUMINATED INFLIGHT. EMERGENCY DECLARED, LANDED AT BNA WITHOUT INCIDENT. REMOVED AND REPLACED BATTERY CHARGER BREAKER AND BOTH BATTERIES IN ACCORDANCE WITH MD80 AMM 24-30-01-4 AND 30-02-2. OPS CHECK GOOD OK FOR SERVICE.