f.
Equalization
The equalization is over-charging of the flooded/wet
battery after fully charged. It is recommended to
equalize the battery only when the specific gravity of
battery is low (lower than 1.25) or the scope (0.030)
of specific gravity is wide after the battery is fully
charged. Do not equalize other batteries. The
conditions for equalizing are as follows:
Verify whether the battery is flooded/wet
battery.
Inspect the electrolyte level height to ensure that
the positive and negative electrode plates have
not been flooded before charging.
Before charging, confirm that all the vent caps
have been fixed on the battery properly.
Set the charger to equalization mode.
The battery will bleed air in the equalization
process.
Measure the specific gravity every hour; stop
charging in equalization mode when the specific
gravity does not rise up.
g.
Storage
It is necessary to charge the battery before
storage.
Store the battery in shady, cool and dry places
without weather influence.
Disconnect the power-off plug to eliminate the
potential parasitic loading which may cause
electrical leakage of battery.
The battery will self-discharge gradually during
the storage. It is necessary to monitor the
specific gravity or the voltage every 4-6 weeks.
See the following table for the charging state,
specific gravity and open-circuit voltage.
Percentage
Charging
Specific
Gravity
Open-circuit Voltage
Battery
Cell
6V
12V
100
1.277
2.122
6.37
12.73
90
1.258
2.103
6.31
12.62
80
1.238
2.083
6.25
12.50
70
1.217
2.062
6.19
12.37
60
1.195
2.040
6.12
12.24
50
1.172
2.017
6.05
12.10
40
1.148
1.993
5.98
11.96
30
1.124
1.969
5.91
11.81
20
1.098
1.943
5.83
11.66
10
1.073
1.918
5.75
11.51
It is necessary to re-charge the battery in quick
mode when the battery level is 70% or lower.
It is necessary to re-charge before use after
taking the battery from the storage warehouse.
Storage in hot environment (above 32
℃)
During storage, do not expose the battery
directly to the heat source. The self-discharge
speed will be higher in hot temperature. If
storing the battery in hot summer, it is necessary
to monitor the specific gravity or the voltage
more frequently (about every 2-4 weeks).
Storage in cold environment (below 0
℃)
During storage, do not put store the battery in
the places with estimated temperature reaching
freezing point; if the battery has not been fully
charged, it may be frozen under cold
temperature. If storing the battery in cold winter,
it is necessary to fully charge the battery. This
point is very important.
h.
Troubleshooting
The battery testing steps below only are guidance for
determining whether the battery needs to be replaced.
Voltage Test when Charging
Disconnect and re-connect the DC plug so as to
re-start the charger.
Record the current in the last half an hour (if
37
GTJZ1412 & GTJZ1414
Maintenance Manual
