As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON APPROACH, PILOT NOTICED BATTERY OVERHEAT LITE GAUGE WAS IN REDAREA. PILOT THEN LANDED IMMEDIATELY AND SHUTDOWN ENGINE. PILOT THEN OPENED REAR BAGGAGE DOOR AND REMOVED BATTERY FROM ROTORCRAFT. BATTERY WAS HOT TO TOUCH AND ACID WAS BUBBLING AND OOZINGFROM TOP AREA OF BATTERY.