As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS BATTERY: AFTER TAKEOFF GEAR UP GOT THE EMERGENCY LIGHT NOT ARMED CAS MESSAGE ON THE ELECTRICAL PAGE BOTH BATT 1 & 2 WHERE SHOWING 25.1 AND 25.0 IN YELLOW. DC BUS 1 WAS NOT POWERING THE EMER BUS. DC BUS 2 WAS NOT POWERING THE CENTRAL BUS HOT BUS 2 WAS POWERING THE EMER BUS. ON LANDING THE BATT VOLTAGE WAS 24.5 &24.6 VOLTS.