Characteristics of Nickel Iron Cell

Characteristics of Nickel Iron Cell Points : Characteristics of Nickel Iron Cell The characteristics of nickel iron cells are as given below:

1. Is light in weight.
2. When fully charged voltage per cell is 1.4 volt and is discharged till its voltage falls to 1.15 volt.
3. The average charging voltage is 1.7 volt.
4. The internal resistance of the cell is high four to five times of lead acid cell. The efficiency is low. The ampere-hour efficiency of the cell is about 75 to 85%.
5. Has good mechanical strength due to plates are of steel.
6. Can be charged and discharged at high rate without damage.
7. Can be left in discharge condition for long time without any harm.
8. The cell capacity increases with increase in temperature.
9. Cost is double to that of lead acid cell of same capacity.
10. The lift is more than lead acid cell and is at least five years.