Narada Power Source CO., LTD TT Series Battery Operation Manual
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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.
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The quality certificates and packages of TT batteries record the latest charge time of the
batteries, next charge time can be calculated according to this charge time.
Fig. 3-2 Available Capacity VS. Storage Time at Different Ambient Temperature
。
C
a
p
ac
it
y
(%
)
Storage Time(month)
3
6
9
12
15
18
21
24
27
50
25
75
30 C
O
(86 F)
O
20 C(68 F)
O
O
40 C
O
(104 F)
O
10 C(50 F)
O
O
100
6. Maintenance
In order to assure service life, the batteries should be correctly inspected and maintained.
The maintenance methods of TT batteries are recommended as follows
6.1.
Monthly Maintenance
Implement following inspection every month:
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Keep the battery-room clean.
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Measure and record the ambient temperature of the battery-room.
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Check each battery’s cleanness; check damage and overheating trace of the terminal,
container and lid.
—
Measure and record the total voltage and floating current of the battery system.
6.2.
Quarterly Maintenance
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Repeat monthly inspection.
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Measure and record floating voltage of every on-line battery. If more than two cells’
voltage is less than 2.17V/cell after temperature adjustment, the batteries need to be equalization
charged. If the problem still exists after adopting above-mentioned measures, the batteries need
yearly maintenance or even three years’ maintenance. If all methods are ineffective, please
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