Alkaline batteries are the most common, easiest to get, and cheapest too.

碱性电池是最普通、最容易买到的，也是最便宜的一种。

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Zirconia cloth is an ideal separator material for the alkaline batteries.

锆纤维布是大容量碱性电池的理想隔膜材料。

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Some rechargeable alkaline batteries are available, but they are pretty rare.

一些可充电的碱性电池可用，但他们是相当罕见 的。

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Most are alkaline batteries, discarded after a single duty cycle.

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For added convenience, the SL30 is powered by easily available, AA alkaline batteries, assuring end-users that they can find a replaceable power source no matter where they may be.

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That kind of performance is unheard of in today's plug-free chargers, which tend to be powered by conventional alkaline or lithium ion batteries and often can only last for one or two charges before needing replacement or recharging on their own.

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