Stanley FATMAX KFMCD628 Original Instructions Manual page 6

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Charging the battery
The battery needs to be charged before first use and whenev-
er it fails to produce sufficient power on jobs that were easily
done before. The battery may become warm while charging;
this is normal and does not indicate a problem.
Warning! Do not charge the battery at ambient temperatures
below 10 °C or above 40 °C. Recommended charging tem-
perature: approx. 24 °C.
Note: The charger will not charge a battery if the cell tempera-
ture is below approximately 10 °C or above 40 °C.
The battery should be left in the charger and the charger
will begin to charge automatically when the cell temperature
warms up or cools down.
Plug the charger into an appropriate outlet before inserting
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the battery pack.
Insert the battery pack into the charger.
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The LED will flash indicating that the battery
is being charged.
The completion of charge is indicated by the
LED remaining on continuously. The pack is
fully charged and may be used at this time or
left in the charger.
Warning!
Recharge discharged batteries as soon as pos-
sible after use or battery life may be greatly diminished.
Charger diagnostics
This charger is designed to detect certain problems that can
arise with the battery packs or the power source. Problems
are indicated by one LED flashing in different patterns.
Bad Battery
The charger can detect a weak or damaged
battery. The red LED flashes in the pattern
indicated on the label. If you see this bad
battery blink pattern, do not continue to charge the battery.
Return it to a service centre or a collection site for recycling.
Hot/Cold Pack Delay
When the charger detects a battery that
is excessively hot or excessively cold, it
automatically starts a Hot/Cold Pack delay,
suspending charging until the battery has normalised. After
this happens, the charger automatically switches to the Pack
Charging mode. This feature ensures maximum battery life.
The red LED flashes in the pattern indicated on the label when
the Hot/Cold pack delay is detected.
Problem Power Line
When the charger is used with some
portable power sources such as genera-
tors or sources that convert DC to AC, the
6
(Original instructions)
charger may temporarily suspend operation. The LED flashes
in the pattern indicated on the label. This indicates that the
power source is out of limits.
Leaving the battery in the charger
The charger and battery pack can be left connected with the
LED glowing indefinitely. The charger will keep the battery
pack fresh and fully charged.
Important charging Notes
Longest life and best performance can be obtained if
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the battery pack is charged when the air temperature is
between 18 °C - 24 °C. DO NOT charge the battery pack
in an air temperature below +4.5 °C, or above +40.5 °C.
This is important and will prevent serious damage to the
battery pack.
The charger and battery pack may become warm to touch
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while charging. This is a normal condition, and does not
indicate a problem. To facilitate the cooling of the battery
pack after use, avoid placing the charger or battery pack
in a warm environment such as in a metal shed, or an
uninsulated trailer.
If the battery pack does not charge properly:
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Check current at receptacle by plugging in a lamp or
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other appliance.
Check to see if receptacle is connected to a light switch
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which turns power off when you turn out the lights.
Move charger and battery pack to a location where the
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surrounding air temperature is approximately
18 °C - 24 °C.
If charging problems persist, take the tool, battery pack
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and charger to your local Stanley Fat Max service
center.
The battery pack should be recharged when it fails to
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produce sufficient power on jobs which were easily done
previously.
DO NOT CONTINUE to use under these conditions. Fol-
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low the charging procedure.
You may also charge a partially used pack whenever you
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desire with no adverse affect on the battery pack.
Installing and Removing the Battery Pack from the
tool
Warning! Make certain the lock-off button is engaged to
prevent switch actuation before removing or installing battery.
To install battery pack
Insert battery pack firmly into tool until an audible click is
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heard as shown in figure B1. Ensure battery pack is fully
seated and fully latched into position.