一次锂电池在某些军事装备中的特殊功能，是其它电池无法替代的。
In some military equipment, the special function of primary lithium batteries can not be replaced by other batteries.
这样的结果是，电池仅有300微米厚——灵活而超轻薄，而且节能效果比其它电池更好。
The result is a working battery just 300 micrometers thick – that’s 300 millionths of a meter – that is flexible, super-thin, and more energy dense than other thin-bodied batteries.
你还可以花大概20块钱买到那种可以用9伏或其它电池给掌上电脑充电的配件。
You can also get an accessory that will let you recharge your handheld from a 9-volt or other battery for less than $20.
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