As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REJECTED TAKEOFF DUE TO BRIEF BATTERY OVER TEMP LIGHT. INSPECTION PERFORMED OF LEAD ACID BATTERY INSTALLATION & FOUND WITHIN LIMITATIONS. FOUND ZONE WARM DUE TO EXTENDED GND OPERATION WITH ADJACENT FREON AIR CONDITIONING SYS UNDER HIGH AMBIENT TEMPERATURES. OPENED AREA TO ALLOW COOLING, NO FURTHER MALFUNCTIONS. AFM EMER PROCEDURES FOR BATTERY OVER TEMP NOT APPLICABLE DUE TO LEAD ACID BATTERY INSTALLATION.