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2.
Install the battery which is to be diagnosed. The
screen changes, and battery diagnosis starts
automatically.
► Fig.12
NOTE: Communication with the battery is initiated
in order to diagnose the battery. Communication is
not possible with batteries having certain kinds of
problems, in which case the display may not switch to
the screen Fig.12.
3.
When diagnosis is completed, the diagnosis
results are displayed. With regard to interpreting
the diagnosis results, please refer to "How to
interpret the diagnosis results."
NOTE: Normally, a battery diagnosis is completed in
3 to 5 seconds or so. If the diagnosis result screen
fails to appear even after 10 or more seconds,
remove the battery. This is a situation where the
Portable Battery Checker cannot diagnose the battery
because of the nature of the problem with the battery.
4.
After checking the diagnosis results, remove the
battery. The initial screen is restored.
5.
Upon completion of use, hold down the power
button to turn the power off.
How to interpret the diagnosis
results
The diagnosis results are displayed on 4 separate
screens. Select these screens by operating the forward
and backward buttons.
► Fig.13: (10). Number of charging times
The number of times a battery has been charged to
date is displayed on this screen.
► Fig.13: (11). Remaining capacity
The remaining capacity of the battery is indicated using
a bar graph display. When the bar extends up to the far
right end, it means that the battery is fully charged.
NOTE: This is not an indication of the service life of
the battery itself.
NOTE: The display may not be the same as the
remaining capacity indicator on the battery.
NOTE: No display will appear for Ni-MH batteries
whose remaining charge cannot be displayed.
► Fig.14: (12). Battery service life
The remaining service life of the battery is displayed
on this screen. When the battery is new, the bar
graph units are filled in up to the far right end, but they
diminish in range as the battery deteriorates.
► Fig.14: (13). Over-discharging tendency
This indicates the rate at which the battery has been
used until it was over-discharged. (The numerical value
indicated serves only as a general guideline.)
If, for instance, 50% is displayed, it means that the
battery has been used until it was over-discharged one
time out of two times that it was charged.
NOTE: "Over-discharged" refers to a state in which
the user has continued to use the battery even when
the tool's power gets weakened and the remaining
charge has diminished excessively. Using a battery
that is over-discharged will damage the battery. This
is a phenomenon that tends to occur when a tool
or battery without a discharge protection function
(battery with
marking) is used. Over-discharging
may be found even with a battery that has a
discharge protection function.
► Fig.14: (14). Overload work rate
This indicates the rate at which the battery has been
used in an overloaded state.
If, for instance, 50% is displayed, it means that the
battery has been used until it became overloaded state
one time out of two times that it was charged. (The
numerical value indicated serves only as a general
guideline.)
NOTE: Overload means that an excessive current is
flowing from the battery when the battery is used in a
cutting tool, for instance, to perform work requiring a
high level of power or work using power at a level just
before the tool's motor locks up. Overloading tends
to damage the battery, which shortens the battery
service life and/or causes the battery to malfunction.
Extreme overloads even for brief periods of time,
for instance, may significantly raise the numerical
value. Overloading may be found even with a product
that has a discharge protection function (battery
with
marking).
► Fig.15: (15). Battery voltage
The voltage value of the battery is displayed on this
screen.
► Fig.15: (16). Voltage of each battery block (cell)
The voltage of each block inside the battery is displayed
using a graph. The number of block varies depending
on the battery to be diagnosed.
A low voltage of a particular block or variations of three
or more scale units between blocks may indicate a
problem in the cells concerned or in the circuitry.
NOTE: Depending on the type of battery, some
displays may not appear. In this case, the
displayed instead.
NOTE: Even with the same types of batteries, some
displays may not appear, depending on the design
specifications of the batteries.
► Fig.16
The icons to indicate the type of battery's
malfunctioning is displayed. The icon that corresponds
to the malfunction is filled in.
► Fig.16: (17). Malfunction
This icon is displayed when the battery is
malfunctioning. If the malfunction area cannot be
pinpointed, only this icon is displayed.
► Fig.16: (18). Malfunction of a battery cell
► Fig.16: (19). Malfunction of circuit inside the
battery
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