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5. Use of battery
5.1 Supplementary charge
During the delivery and storage, the battery will lose part of the capacity due
to self discharge, so please supplement charge before use;
If storage occurs before installation / connection, supplement charge
regularly; Supplementary charge according table 2 below before use:
Table 2 The time interval of supplementary charge and storage temperature
Storage
temperature
Time interval of
supplementing charge
Supplementing charge way
20
℃
or less
Every 9 months
a) Charging at a constant voltage of
2.23-2.27V/cell and initial current to be
less than 0.3C (A) for 2-3days b)
Charging at a constant current of
0.3C(A) and a constant voltage of
2.30-2.40V/cell for 10-16 hours c)
Charging at a constant of 0.1C(A) for
8-10 hours
20
℃
~30
℃
Every 6 months
30
℃
~40
℃
Every 3 months
Note:
Current value C is rated capacity of battery. Example: rated capacity of 2V300AH
battery is 300AH, 0.1C (A) = 0.1X300 = 30A;
5.2 Discharge
Ensure the maximum allowable discharge current does not exceed the value
below
：
Discharge current I≤1C
10
(A), continuous discharge;
Final discharge protective voltage as table 3 below:
Table 3 Final discharge voltage
Discharge rate
Current of
discharge(A)
Final discharge
voltage (V/cell)
Testing standard of
capacity
10h
1.0I
10
1.8
≥1.00C
10
5h
1.7I
10
1.8
≥0.85C
10
3h
2.5I
10
1.75
≥0.75C
10
1h
5.5I
10
1.75
≥0.55C
10
Note:
Do not let terminal voltages drop below the above specified values.
