The deep cycle life of battery made from Pb-Ca-Sn-Al alloy was increased and reached 435 cycles after improvement.

经过改进，提高了铅钙锡铝合金电池的深循环寿命，循环寿命达到了435次。

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After many tests, the deep cycle life over 450 times and fast cycle life over 800 times of positive plate were reached.

目前通过多次试验正极板深循环寿命可超过450次，快速寿命可超过800次。

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The initial capacity of battery was increased, and the deep cycle life was shortened greatly because of over deep discharging.

电池经过深放电有利于提高电池的初期容量但大大地缩短了电池的深循环寿命。

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