TC reported Front DT, Battery Low Voltage and Battery Over Temperature. Train performance - ok. TC reported Front DT, Battery Low Voltage and Battery Over Tempe rature. Train performance - ok. ~~~~~ 3674 TC reported Front DT(3674), Battery Low Voltage and Battery Over Temperature. Train performance - ok.  3674 fault code 426,427. In TIMS battery voltage ok But Battery temperature show 39 Degrees Celsius. Physical check battery fuse ok, Battery bank ok and battery voltage present. Further check temperature sensor of of criteria 4.5kohm. Replace battery bank and function test ok. Battery voltage 108vdc and temperature ok. 30 degress Celsius. Monitor ok KSFB battery bank old:KSFB-2016-106 New:KSFB-2016-072 Notif CSC:2571218 Done by Saini/Asruddin/Haslan 45337