As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER FLIGHT ATTENDANT TESTED EMERGENCY LIGHTS, LIGHTS WOULD NOT TURN OFF. RECEIVED EMER LT BATT FAULT ON EICAS. UPON MAINTENANCE ARRIVAL TO AIRCRAFT, FOUND EMERGENCY LIGHTS IN CHARGING CYCLE. FAULTS CLEARED AND SYSTEM CHECKED NORMAL IAW EMB 170 MM 33-50-00.