As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE FROM DRAIN HOLE OF E & E COMPARTMENT. FOUND BATTERIES BEING OVERCHARGED. REPLACED LEFT AND RIGHT BATTERIES, BATTERY CHARGER AND BATTERY CHARGER CIRCUIT BREAKER AS PER AMA BULLETIN 04-T1. PERFORMED BATTERY CHARGER SYSTEM TEST PER M/M 24-30-02-201, CHECK GOOD.