Chapter Three
Operation and Maintenance
1.
Operation Conditions
Ambient temperature: AcmeG series optimum temperature is 15
℃～
25
℃
, the
higher and lower temperatures will impact battery performance
Operation temperature range
Operate status
Temperature range
Optimum
temperature
Discharge
-40
℃～
50
℃
15
℃～
25
℃
Charge
-20
℃～
50
℃
15
℃～
25
℃
Storage
-20
℃～
40
℃
15
℃～
25
℃
Ambient humidity
：≤
95
％
Cabinet ventilation conditions: meet the standard EN 50272-2:2001
2. Capacity and Influencing Factors
2.1
The capacity of the battery is the capacity that battery can be discharged under
certain conditions, represented by the symbol ‘C’. The standard unit of measurement
for capacity is ampere-hour (Ah).
Capacity can be expressed in Rated Capacity or Actual Capacity. Please refer to
Table 1-1 for the Rated Capacity of Narada battery. The Actual Capacity is the
product of the discharge current and the discharge time i.e. Ah.
2.2
Factors that influence the Actual Capacity
Actual capacity is mainly related to the battery’s construction, manufacturing
process and operational environment. During operation, the factors that influence the
actual capacity are the discharge rate, end voltage, ambient temperature and discharge
time.
2.3
Discharge Rate
If the discharge rate (hour rate) is lower, the discharge current is larger, and the
discharge time is shorter, then the capacity that can be discharged will be lesser. For
example, the discharge current of 3 hours rate is larger than that of 10 hours rate; and
the capacity of 3 hours rate is smaller than that of 10 hours rate.
2.4
End Voltage
The end voltage is the lowest working voltage below which the battery will not
be able to discharge further. The end voltage of AcmeG series battery is typically
10.8V per block. Due to the characteristics of gel battery, the battery will not be able
to discharge even if the end voltage drops. The lower end voltage will harm the
battery, especially when the voltage drops to 0V and the battery cannot be recharged
