Unfortunately, because these materials are not good conductors of electric charge, it takes a long time to get the charge in or out of a battery.
不幸的是，因为这些阴极材料都不是良导体，所以充放电需要很长时间。
German battery should avoid sun lay up for a long time, can't long-term floating without discharge.
德国阳光蓄电池应避免长期搁置不用，也不能长期浮充而不放电。
Since long time no, the battery can not be charged and the voltage is too low, PLC program is lost.
由于长时间不用，电池得不到充电而电压过低，PLC程序丢失。
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