© Jan 2022 6-14 0607SE Maintenance Manual
REPAIR
See the Charging the Battery section of Operation
Manual.
Equalizing
Equalization is the deliberate process of overcharging
the flooded/wet battery after it has been fully charged.
Equalize the battery only when the specific gravity of
battery is low (less than 1.25) or the scope (0.030) of
the specific gravity is wide after the battery is fully
charged.
Note：
• Verify whether the battery is flooded/wet battery.
• To prevent battery damage, the battery must be
equalized within a maximum of 3 months storage
after delivery.
1. Inspect the electrolyte level height to ensure a
proper electrolyte level.
2. Verify all vent caps are properly secured to the
battery.
3. Set the charger to equalization mode.
4. Charge the battery in equalization mode.
The battery will bleed air in the equalization process
(forming bubbles).
5. Remove the vent cap every hour to measure the
gravity of all battery cells, if the gravity doesn’t
increase, stop the charging in equalization mode.
Storage
• Fully charge the battery before storage.
• The battery should be stored in cool and dry
environment (temperature 10℃~25℃, RH less than
90%), and charge the battery every 3 months using
the charger provided by the manufacturer.
• Disconnect the power-off plug to prevent potential
parasitic loading, which may cause electrical
leakage of the battery.
• The battery will self-discharge gradually during
storage. Monitor the specific gravity or the voltage
every 4～6 weeks. The comparison of the charging
state with specific gravity and open-circuit voltage is
shown in the following table.
Table 6-5
Percentage Charging
(%)
Specific Gravity
Open-Circuit Voltage (V)
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
• Recharge the battery in quick mode when the
battery level is 70% or lower.
• Recharge the battery before use after removing it
from storage.
• Storage in hot environments (above 32°C [90°F]):
During storage, do not expose the battery directly to
the heat source. The self-discharge process will
accelerate in warmer temperatures. If storing the
battery in hot temperatures or during hot weather,
monitor the specific gravity or the voltage more
frequently (about every 2 - 4 weeks).
• Storage in cold environments (below 0°C [32°F]):
During storage, do not store the battery in a place
with an estimated temperature reaching the freezing
point; if the battery has not been fully charged, it
may freeze in cold temperatures. If storing the
battery in cold temperatures or during cold weather,
fully charge the battery. This point is very
important.
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