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Do not connect the (+) and (-) terminals of the
battery to each other with a metallic material such as wire; do not allow
tools such as pipe wrenches and wrenches to touch points of different
voltages on the battery; and do not bring metallic necklaces or hair pins
into contact with the battery or store them together with the battery.
Failure to observe these precautions may cause the battery to overheat,
emit hydrogen gas, ignite, or burst.
Do not throw the battery in fire or
heat the battery. The battery may burst or generate a toxic gas
if placed in contact with fire.
Check the battery for any sign of irregularities
in appearance. If these is any damage to the battery case/cover such as
cracks, deformation or leakage, replace the battery with a new one. If the
battery appears dirty or dusty, clean it. If a battery of irregular appearance
continues to be used, decrease of capacity, leakage of electricity, fumes,
ignition or other problems may result.
- Do not charge the battery with its (+) and (-) terminals and the
(+) and (-) terminals of the charger connected in reverse.
- Do not apply a solder directly to the battery terminals.
- Avoid mixed usage of batteries differing in type, manufacturer
or history of use.
- Do not remove or damage the outer case of the battery.
- Do not apply strong shocks or jolts to the battery.
Do not continue to charge the battery beyond the
time specified in the instructions of use of the charger. If the
battery is not fully charged even after being charged for a
longer time than specified, discontinue charging and remove
the battery from the charger. Charging for a longer time than
specified may cause the battery to ignite or burst.
Avoid over-discharge, and charge the battery
immediately after discharge. The instruction manual of the equipment
should contain information telling the user not to over-discharge the
battery and to charge the battery immediately after the use of the
equipment (discharge). Even if discharge of the battery is stopped before
voltage decreases to such a level that the battery-driven equipment stops
being operational, deterioration of the battery may be accelerated by the
sulphation phenomenon if it is not recharged after use. The love voltage
cut-off circuit should be designed so that it can completely cut off the
discharge current including a weak current.
If a charge method and a charge condition other
than that described in the specification and the technical brochures is
to be adopted, charge/discharge characteristics and life characteristics
of the battery should be thoroughly checked in advance. The adoption of
adequate charge methods and adequate charge conditions are crucial to
ensure safe use of the battery and for fully utilizing the battery capacity.
INSTALLATION MANUAL
For the cycle operation of the battery (application
of the battery as the main source of power by repeating charge and
discharge), use a charger which operated by controlling either the
charge period or charge quantity. Continue charging the battery for the
time specified or until the charge completion lamp, if provided, indicates
completion of charge. If charging is suspended before completion, the
service life of the battery may be shortened.
Avoid parallel charging of batteries in cycle
use, as this may shorten the service life of the batteries by causing an
imbalace in charge/discharge state among the batteries connected in
paralled.
During trickle or float charge of the battery,
measure the total voltage with a high-accuracy voltmeter of Class 0.5 or
better. If the voltage readout does not meet the specified value, investigate
the reason and take proper measures. A total voltage tha tis lower than
the specified value indicates insufficient charge which may reduce the
battery capacity; a coltage higher than specified indicates an overcharge
which may shorten service life of the battery or cause problems such as
thermal runaway in some cases.
Make sure to turn off the switch of the battery
equipment after use, otherwise excessive discharge may cause
deterioration in battery performanceand shorten service life.
When the equipment is not used for a long period,
remove the battery from the equipment, charge it fully, and store it in a
place where humidity is low. Unsatisfactory storage conditions may cause
deterioration in battery performance, shorten service life and could cause
rust to form on the terminals.
MAINTENANCE AND CHECKING
Clean the battery with a slightly damp cloth,
ensure there is no excess water on the cloth by squeezing it well. Do not
use dry cloth or a duster, as it may cause the battery to generate static
electricity, leading to possible ignition and bursting of the battery.
Replace the battery with a new one within the
time period specified in the instruction manual or equipment.
- Follow the guideline which states the battery should be replaced
when its capacity has decreased to 50% of the initial capacity (at
an ambient temperature of 77°F (25°C) or below). In the trickle
or float application of the battery (application as stand-by power)
at an ambient temperature higher than 77°F (25°C), the period
for which the battery can be used before replacement is shortened
by a half for ever 10°C rise of temperature. When the discharge
current becomes higher than 0.25 CA, the run time and battery life
is also shortened.
Do not apply organic solvents such as paint
thinner, gasoline, kerosene and benzene or liquid detergents to the battery.
If these are brought into contact with the battery case, it may crack,
causing leakage.
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