Сульфатация
If the battery long time is in the discharged condition, lead sulphate turns to firm crystal substance which is difficult enough for transforming back to active weight at the subsequent gymnastics.
“Сульфатация” means not only process of the given chemical reaction, but also its result.
It is possible to return such battery in a condition of operational readiness by means of very slow gymnastics, but its capacity will be weaker, than earlier.
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