As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REPLACEMENT OF AUXILIARY BATTERY, BATTERY DC AMPERAGE SHOWS 450 AMPS. SHOULD BE LESS THAN 50 AMPS WHILE CHARGING. ACFT GROUNDED. REF WDM 24-31-11. FOUND NEGATIVE TERMINAL LOOSE IN BATTERY CONNECTOR D44. INSTALLED AND SECURED TERMINAL IAW SWPM 20-62-25. NO DAMAGE NOTED. PERFORMED BATTERY INSTALLATION TEST IAW MM 24-31-11-400-802-002. OPS NORMAL.