OPzV Battery Operation Manual
10
Avoid over-charge; otherwise, battery life will shorten. The maximum charging time by constant
voltage of 2.35V/cell and current limited of 0.15C
10
(A) should be not more than 24 hours.
5 Storage
All lead acid batteries experience self-discharge in open circuit. The result is that open circuit
voltage decreases, and the capacity also decreases. During storage please note:
A) The self-discharge rate is related with ambient temperature. The self-discharge rate is
smaller when the ambient temperature is lower, otherwise is larger. The required temperature of
battery’s storage environment is from 5
℃
to 30
℃
. The storage place must be clean, ventilated and
dry;
B) An important parameter in storage is open circuit voltage, which is related with density of
the electrolyte. If the open circuit voltage is lower than 2.08V/cell, or have been stored for long
time, the batteries should be charged to avoid damage caused by self discharge;
Storage temperature
Longest interval
over 30
℃
once 6 months
under 30
℃
once 9 months
C)
All batteries, which are ready to store, should be fully charged before storage. It’s
suggested to record the storage time in the periodic maintenance record and record the time when
another necessary supplemental charge should be made;
D) The quality certificates and packages of VRLA/gel batteries record the latest charge time
of the batteries, next charge time can be calculated according to this charge time.
6 Maintenance
In order to assure service life, the batteries should be correctly inspected and maintained.
6.1 Cleaning
Keep batteries and battery room clean and dry.
Avoiding induce of static electricity during clean of batteries.
Use damp cloth for cleaning, don’t use gasoline, alcohol and other organic solvents.
6.2 Check and maintenance
Perform following routine checks and keep records.
