What was found
REPEAT WRITEUP, AT TOC FL 331 STARTED SETTING BAT DISCHARGING ALERT INTERMITTENTLY COMING ON, SOMETIMES LASTING 15-20 SECONDS APPROXIMATELY SMOOTH AIR. BATTERY VOLTAGE ON SYNOPTIC WAS NEVER BELOW 29 VOLTS. FOUND RELAY R2-5142 INTERMITTENTLY NO OUT PUT, RELAY R2-5145 NO ACTIVATION WITH POWER ON, PIN A2/A3 STUCK ON. REPLACED BOTH RELAYS, PER WDM 24-62-11 AND TEST NORMAL, PER AMM 24-32-00-5. REMOVED AND REPLACED THE GROUND SERVICE RELAY R2-15, PER AMM 24-53-01-4. PERFORMED RETURN-TO-SERVICE TEST OF EPCU, PER AMM 24-08-01-5, TEST PASSED. PERFORMED OPERATIONAL TEST OF THE BATTERY, PER AMM 24-34-02-5, TEST NORMAL. PERFORMED OPERATIONAL TEST OF THE BATTERY CHARGER RELAY R2-24, PER AMM 24-34-01-2, TEST NORMAL.PERFORMED OPERATIONAL TEST OF THE BATTERY CHARGER, PER AMM 24-34-03-4, TEST NORMAL.