As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING T/C A320-33-51-00-710-003 BATTERY 10WL FAILED CAP TEST. EMERGENCY POWER SUPPLY UNIT & BATTERY FAILED TEST AT LOC 11WL. DURING T/C A320-33-51-00-710-003 BATT 12WL FAILED CAP TEST. EMERGENCY POWER SUPPLY UNIT AT 13WL FAILED SYSTEM TEST; R & R BATT 10WL IAW 33-51-38. TEST NORMAL. R & R EPSU & BATTERY AT 11WL REF AMM 33-51-38 OPS CHECKS GOOD. R & R BATT 12WL IAW 33-51-38 TEST NORMAL. R & R EMERG POWER SUPPLY UNIT & BATT AT 13WL, REF 33-51-38. OPS CHECKS GOOD.