Ni Cd and Ni Mh are both types of rechargeable batteries. They are both nickel-based batteries, but they have different chemistries. Ni Cd batteries use nickel-cadmium chemistry, and Ni Mh batteries use nickel-metal-hydride chemistry.

The biggest difference between Ni Cd and Ni Mh batteries is that Ni Mh batteries are more environmentally friendly. Ni Cd batteries contain toxic cadmium, which can be harmful to the environment. Ni Mh batteries do not contain cadmium, so they are safer to use and recycle.

Ni Cd batteries have a longer lifespan than Ni Mh batteries. They can last for up to 1000 cycles, …