KPM TYPE (Medium Discharge Rate Cells)

KPM Series medium rate nickel cadmium battery is made of pocket plates. The battery is suitable for medium discharge rate applications (between 30 minutes to 5 hours) such as railroad DC power sources, UPS, gas turbine control, etc.

Applications:
UPS (over 30min), railway DC power sources, auxiliary power source for power stations,chemical plants, oil refineries, iron works.

Charge:
The most common type of charging for stationary batteries is modified constant voltage, usually with current limitation of 0.2ItA or 0.1ItA (C/5 or C/10). The battery is connected to the charger directly which applies a constant voltage across the battery terminals.
Recommanded single cell charging voltage:
Float charge: 1.43+0.01
Equalizing charge: 1.63

Initial charging
The whole charge should be carried out preferably at constant current. The charging time is inversely proportional to the current which is set by the current limit of the charging equipment. Recommened rates and time for the first charging:
0.21tA for 10 hours
0.1 ItA for 20 hours