Operation manual for Acme series V4.2
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a.
The batteries should be recharged in time after discharge.
b.
After battery system installed
c.
Battery storage period exceed three month or open circuit voltage lower than
12.6V/block
Battery charging is recommended as follows:
The batteries should first be charged on the constant current of 0.10C
10
A till the
average voltage of the batteries increases to 14.1V/block, then the batteries
should be charged with constant voltage of 14.1V/block till the charging has
completed.
On some occasions, the batteries have to be fully charged immediately, then fast
charging could be adopted. The value of limit current should not be larger than
0.2C
10
A, and the charge voltage should be 14.1V/block (25º
C).
Whether the batteries are fully charged can be decided according to any one of two
standards as follows:
a. After charging 18
～
24hours(can be shorter if not deep discharged, for example
20% DOD, the charging time can be shorten into 10 hours)
；
b. Under condition of constant voltage, the value of charge current hasn’t varied
for continuous three hours.
5. Storage
All lead acid batteries experience self-discharge in open circuit. The result is that
the voltage of open circuit is decreased, and the capacity also decreased. During
storage period, please note:
5.1
The self-discharge rate is related with ambient temperature. The self-discharge
degree is smaller when the ambient temperature is lower, otherwise is larger. The
requirement temperature of Narada batteries’ storage environment is from 5°C to
30°C. The storage place must be clean, ventilated and dry.
5.2
An important parameter in storage is open circuit voltage, which is related with
density of electrolyte. In order to avoid permanent damage to the plate caused by
self-discharge, the batteries should be supplemental charged as storage period
shown in following table. The equalization charge method should be adopted.
Storage temperature
Max. Storage period
Above 30°C
3 months
Below 30°C
6 months
5.3
During storage, if the open circuit voltage is lower than 12.6V/block, the batteries
