OPzV Battery Operation Manual
4
Part two Operation and Maintenance
1. Operation Condition
1.1 The recommended operating temperature range for optimum life and performance is from
15
℃
to 25
℃
.
If the battery is used at high or low temperature, it will affect battery performance.
1.2 Max Operating Temperature Range:
GEL batteries
：
Charge
-20
～
+55
℃
;
Discharge
-40
～
+60
℃
;
Storage
-20
～
+45
℃
;
1.3 Humidity:
≤
95%
1.4 Ventilation requirements:
During normal charging conditions the volume of hydrogen emitted from a Kaise VRLA / Gel
battery is virtually negligible, and will normally dissipate rapidly into the atmosphere. The room or
cabinet ventilation should comply with standard EN 50272-2: 2001.
2. Capacity
2.1 Concept of capacity of battery
The capacity of battery is the capacity that battery can be discharged on the established
conditions, expressed as signal C. The usual unit of capacity is ampere hour, shortened as AH.
Normally we indicate discharge hours rate in lower corner of C. e.g. C
10
is 10 hours rated capacity,
and C
3
is 3 hours rated capacity.
The capacity can be expressed in Rated Capacity or Actual Capacity. The Rated Capacity
please sees Table 1-1. The Actual Capacity is the product of the discharge current and the
discharge time, the unit is AH.
The way to determine capacity: e.g. when we try to determine 10 hours rated capacity, please
discharge with current of I
10
for 10 hours, if the voltage of battery is larger than 1.80Vpc, it means
10 hours rated capacity is qualified.
2.2 The Influence Factor of the Actual Capacity
The actual capacity is mainly related with the positive and negative active materials and their
utilization ratio. The utilization ratio of the materials is mainly influenced by the discharge system,
the structure of the battery and manufacture technology. In operation process, the factors that
influence the actual capacity are discharge rate, discharge system, end voltage and temperature.
2.3 Discharge Rate
The discharge rate is often described as hour-rate and multiple rates.
If the discharge rate is higher and the discharge current is larger, then the discharge time is
shorter, and the capacity which can be discharged is less.
2.4 End voltage
The end voltage is the lowest working voltage below which the battery can’t be discharged
