Nickel-metal hydrogen battery is called "green battery" by industry insiders.It is the cell phone battery of good quality, safe and reliable, and is conducive to environmental protection.

Nickel-metal hydrogen batteries have 30 percent more storage capacity than nickel-cadmium batteries, which increases mobile phone talk time by 30 percent.
Nimh batteries are lighter and last longer than nickel-cadmium ones.It has no pollution to the environment and no memory effect.
Nickel metal hydride batteries are more expensive than nickel cadmium batteries, performance than lithium batteries to poor.It's a mid-range battery.