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#### treez

##### Guest

Hello,

We have a NiCd Battery consisting of five 4000mAh NiCd cells.

It is used in an emergency light.

It is charged constantly with a charging current of C/15. (If the battery voltage starts going above 8V then we stop charging it until it goes back below 8V)

Every month it is discharged for 3 hours with a constant current of 710mA.

What will be the capacity of this battery after 4 years?

NiCd cell datasheet:

We have a NiCd Battery consisting of five 4000mAh NiCd cells.

It is used in an emergency light.

It is charged constantly with a charging current of C/15. (If the battery voltage starts going above 8V then we stop charging it until it goes back below 8V)

Every month it is discharged for 3 hours with a constant current of 710mA.

What will be the capacity of this battery after 4 years?

NiCd cell datasheet: