I use them for several months now, but I continue to use Ni Mh and I can make the comparison. Ni Zn have a voltage of 1.6V (you need a special charger). Some devices simply do not work with Ni Mh because their voltage is too low: calculators, temperature sensors ... The display of LCD screens is better with Ni Zn, recharge time flash of cameras is more Short, lighting LED front lamps are brighter, I surely forget other uses. For cons, I feel (I have done no steps) that their capacity is less than Ni Mh latest generation low internal discharge rate. I continued to use the Ni Mh for low drain devices (analog clocks, remote controls ...) that accept them. Finally, Ni Zn are more environmentally friendly, but also a bit more expensive. So far, my Ni Zn were repeatedly charged and none is HS. Ni Zn Why are they not more widespread in France?
