Before rejecting the battery, it is necessary to check it.
To check electrolit density. If the density in all banks differs no more than on 0,04 g/ml, the battery should be charged the normal charger.
To check the battery after a charging under loading. If values do not correspond demanded, the battery is faulty.
If the electrolit density in one or several banks is much lower, than in the others (for example, the density is equal in 5 banks of 1,16 g/ml, and in one 1,08 g/ml), the battery has short circuit.
To avoid battery presenilation, it is necessary to charge the stored battery each 2 months.
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