Which one is better, Nickel-metal hydride battery or lithium battery?

Frequent friends will ask me, nickel-metal hydride batteries and lithium batteries that are better, in fact, this is really not good to say, mainly depends on what products you use, for example, you choose to use on mobile phone flat-panel electric bicycles, I would recommend using lithium battery as long cycle life, but in the digital camera above, since the digital camera is quite large for the amount of current demand, coupled with power consumption is also much larger than cell phones, the output of this part of the nickel-metal hydride batteries in high current Slightly better.

Lithium battery and nickel hydrogen battery have the following differences:

1. Lithium battery has a single voltage of 3.2 and 3.7v, and a single nickel-hydrogen battery of 1.2V.

2. The lithium battery has no memory effect, and the nickel hydrogen battery has a memory effect.

3. Lithium batteries do not contain heavy metals (cadmium).

4. The manufacturing and use of lithium batteries is environmentally friendly and pollution-free.

5. The specific capacity of the lithium battery is high, and the specific capacity is the electric energy (wh) per unit volume and weight.

6, the price of lithium battery unit is high.

7. The lithium battery has a long cycle life.

I can make a full understanding of lithium batteries and nickel-metal hydride batteries. Everyone can judge which kind of battery is better by choosing the products they choose.