A lot of those battery life myths you might hear apply to nickel-cadmium and nickel-metal hydride batteries.

你听到的很多关延长电池寿命的小窍门，仅适镍镉和镍氢电池。

By the 1990s, energy-dense nickel-metal hydride batteries were on the market, soon followed by lithium-ion batteries.

到了 20 世纪 90 年代，市场上出现了高量密度的镍氢电池，很快，锂离子电池也问世了。

Hybrids aren't true electric vehicles; their nickel-metal hydride batteries are only used to optimize the efficiency of gas-burning engines.

混合动力车并不是真正的电动汽车；他们的镍氢电池仅化燃汽油发动机的效率。

The NIM ones last longer and are better for the environment.

镍氢电池续航更持久，对环境也更友好。

I got different types of, you know, and different battery sizes, AA's, AAA's, working through all the different, and there was lithium ion, nickel metal hydrate.

我收集了各种不同类型的电池， 包括不同尺寸的，比如AA型和AAA型， 涵盖了所有不同的种类，还有锂离子电池和镍氢电池。

Then there are nickel cadmium and nickel metal hydride batteries.

然后还有镍镉电池和镍氢电池。