As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CLIMBING THROUGH5000 FEET THE CREW RECEIVED A RIGHT HAND BATTERY OVERHEAT CAS MESSAGE AND THE FLIGHT RETURNED TO CAK. MAINTENANCE INSPECTED AND REPLACED THE RIGHT HAND BATTERYIN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 24-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.