Nickel cadmium provides more charge per pound than lead acid batteries, but less than nickel metal hydride. Its major problem is the so-called "memory effect," in which the battery seems to ...

The same can't be said for the manufacturer's Ni-Cad (Nickel-Cadmium) batteries, however, but these have been discontinued in ...

This would become a recurring problem for the next 100 years. When nickel-cadmium batteries were invented, the first flight with an electric motor took off, but it only lasted less than 15 minutes.

Most laptops now use lithium-ion batteries due to superior energy density. Nickel-cadmium and nickel-metal hydride are alternatives, but a sign that you need to upgrade your computer. To identify ...

One of the most under-appreciated features of the iPad is its fantastic battery life. Even with a high-resolution screen and ...