It is also discussed how to prolong the lifetime of the battery, to raise the charge efficiency, to save electrical energy and so on.
并就如何延长电池使用寿命，提高充电效能，节约电能等问题进行了讨论。
You will be able to save more money in your family from economizing electrical energy.
您将能够节省更多的钱在您的家庭从节约电能。
We estimate a save of electrical energy of 20 ~ 30%, and it is possible to use cheap manganese dioxide as the catalyst used in the oxygen electrode.
估计节省电能20 ~ 30%。并提出廉价的二氧化锰有作为氧电极催化剂的可能。
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