What was found
BATTERY MFG 11-93, PUT INTO SERVICE ON 6-29-94, RETIRED 2-21-95. STD CHARGE RATE USED: ONE-HALF C1 2 HRS, PLUS ONE-TENTH C1 4 HRS. DURING SECOND HALF OF 4 HRS, TO CHARGE 6 CELLS SHOWED VOLTAGE DROPS OF 0.15V TO 0.20V WITH ABNORMAL HEAT BUILD UP IN THESE CELLS AND A TOTAL VOLTAGE DROP OF JUST OVER 1.0V. SEPARATOR DAMAGE INDICATED. SEE BEECH KA-300 MM 24-32-00, PAGE 3 (JUNE 24, 1994) FOR GAS BARRIER CHECK PROCEDURE.