As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RED CAS MESSAGE BATTERY O TEMP LIGHT ILLUMINATED ON TAKEOFF ROLL. TEMP, BATTERY, WENT UP TO +71 C. COMPLIED WITH APPROPRIATE EMERGENCY CHECKLIST. THE CYAN BATTERY OFF LT CAS MESSAGE DID NOT DISPLAY. CFR SAID THEY COULD SMELL ODOR & BURNING FROM LT BATTERY COMPARTMENT. REMOVED AND REPLACED BOTH MAIN BATTERIES. OPS CHECKED GOOD. WORK DONE IAW MM 24-31-00.