DYNAMIS Batterien GmbH
Brühlstr. 15 D-78465 Dettingen / Konstanz
Tel. +49 7735 93669-0 Fax +49 7735 93669-91
[email protected] www.dynamis-batterien.de
04.12.2006
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4.4 Discharge protection of batteries
The discharge cut off voltage of lead acid batteries should be decreased
when the discharge rate is increased. The recommended values for 12 volts
batteries are as follows:
To deeply discharge the battery to values below 1.60V/cell, or to leave the
battery in a discharged state for long period, the battery be will seriously
damaged, and this situation should be avoided.
The discharged batteries should be recharged or floating charged immediately.
4.5 Equalization charging
Cyclic use batteries after charge and discharge for 20 to 40 cycles are
suggested to perform one equalization charge. Before such equalization
charge, it is beneficial to allow the battery to be deep discharged with small
current. The purpose of this treatment is to activate the plates and to restore
the capacity of the battery.
The discharge / charge treatment starts with further discharging the already
high rate discharged battery with constant current of 40 hour rate (C/40 Amp)
to 1.75V/cell. After rest for one hour, a proper equalization charge to fully
charge the battery is performed. A two-stage constant current charging is
suggested. The first stage is the charging with 0.3CA constant current to
2.4V/cell. The second stage is the charging with 20-hour rate (C/20 Amp)