CCCV Charging of NiMH Cells

Is it possible to charge Ni-MH cells using CCCV algorithm? How good or bad it is and how does it affect the cells’ cycle life? Let’s find out…

Test Objects

Panasonic Ni-MH 2700 that performs so poorly in life cycle tests.

CCCV could be gentler on NiMH cells than -dV so I hope for more cycles at the expense of capacity. We shall see…

Test Method

I don’t have any charger that could CCCV charge Ni-MH cells. The closest I have is the RAM charging algorithm on SkyRC MC3000 charger. I am going to cycle the cells with these parameters:

Test Result (Ongoing)

CCCV Charging of NiMH Cells

Conclusion

Cheers,
AA Cycler