Using An Extension Cable; Important Safety Instructions For All Battery Chargers; Charger Operation; Electrical Safety - DeWalt DCS778 Manual

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Electrical Safety

The electric motor has been designed for one voltage only. Always check
that the battery pack voltage corresponds to the voltage on the rating
plate. Also make sure that the voltage of your charger corresponds to that
of your mains.
Your D WALT charger is double insulated in accordance with
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IEC60335; therefore no earth wire is required.

WARNING: 115 V units have to be operated via a fail-safe isolating
transformer with an earth screen between the primary and
secondary winding.
If the supply cord is damaged, it must be replaced by a specially prepared
cord available through the D WALT service organisation.
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Using an Extension Cable

An extension cord should not be used unless absolutely necessary. Use an
approved extension cable suitable for the power input of your charger (see
Technical Data). The minimum conductor size is 1 mm
length is 30 m.
When using a cable reel, always unwind the cable completely.
SAVE THESE INSTRUCTIONS
Chargers
D WALT chargers require no adjustment and are designed to be as easy as
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possible to operate.
Important Safety Instructions for All Battery
Chargers
SAVE THESE INSTRUCTIONS: This manual contains important safety
and operating instructions for compatible battery chargers (refer to
Technical Data).
• Before using charger, read all instructions and cautionary markings on
charger, battery pack, and product using battery pack.

WARNING: Shock hazard. Do not allow any liquid to get inside
charger. Electric shock may result.

WARNING: We recommend the use of a residual current device with a
residual current rating of 30mA or less.

CAUTION: Burn hazard. To reduce the risk of injury, charge only
D WALT rechargeable batteries. Other types of batteries may burst
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causing personal injury and damage.

CAUTION: Children should be supervised to ensure that they do not
play with the appliance.
NOTICE: Under certain conditions, with the charger plugged into the
power supply, the exposed charging contacts inside the charger can be
shorted by foreign material. Foreign materials of a conductive nature
such as, but not limited to, steel wool, aluminum foil or any buildup of
metallic particles should be kept away from charger cavities. Always
unplug the charger from the power supply when there is no battery
pack in the cavity. Unplug charger before attempting to clean
• DO NOT attempt to charge the battery pack with any chargers
other than the ones in this manual. The charger and battery pack are
specifically designed to work together.
• These chargers are not intended for any uses other than charging
D WALT rechargeable batteries. Any other uses may result in risk of fire,
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electric shock or electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when disconnecting charger. This will
reduce risk of damage to electric plug and cord.
• Make sure that cord is located so that it will not be stepped on,
tripped over, or otherwise subjected to damage or stress.
• Do not use an extension cord unless it is absolutely necessary.
Use of improper extension cord could result in risk of fire,electric shock,
or electrocution.
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• Do not place any object on top of charger or place the charger on
a soft surface that might block the ventilation slots and result in
excessive internal heat. Place the charger in a position away from any
heat source. The charger is ventilated through slots in the top and the
bottom of the housing.
Do not operate charger with damaged cord or plug—have them
•
replaced immediately.
Do not operate charger if it has received a sharp blow, been
•
dropped, or otherwise damaged in any way. Take it to an authorised
service centre.
• Do not disassemble charger; take it to an authorised service centre
when service or repair is required. Incorrect reassembly may result in a
risk of electric shock, electrocution or fire.
• In case of damaged power supply cord the supply cord must be replaced
immediately by the manufacturer, its service agent or similar qualified
person to prevent any hazard.
• Disconnect the charger from the outlet before attempting any
; the maximum
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cleaning. This will reduce the risk of electric shock. Removing the
battery pack will not reduce this risk.
• NEVER attempt to connect two chargers together.
• The charger is designed to operate on standard 220-240V
household electrical power. Do not attempt to use it on any other
voltage. This does not apply to the vehicular charger.
Charging a Battery (Fig. C)
1. Plug the charger into an appropriate outlet before inserting
battery pack.
2. Insert the battery pack
pack is fully seated in the charger. The red (charging) light will blink
repeatedly indicating that the charging process has started.
3. The completion of charge will be indicated by the red light remaining
ON continuously. The battery pack is fully charged and may be used
at this time or left in the charger. To remove the battery pack from the
charger, push the battery release button
nOTE: To ensure maximum performance and life of lithium-ion battery
packs, charge the battery pack fully before first use.

Charger Operation

Refer to the indicators below for the charge status of the battery pack.
Charge Indicators
* The red light will continue to blink, but a yellow indicator light will be
illuminated during this operation. Once the battery pack has reached an
appropriate temperature, the yellow light will turn off and the charger will
resume the charging procedure.
The compatible charger(S) will not charge a faulty battery pack. The charger
will indicate faulty battery by refusing to light or by displaying problem
pack or charger blink pattern.
nOTE: This could also mean a problem with a charger.
If the charger indicates a problem, take the charger and battery pack to be
tested at an authorised service centre.
hot/Cold Pack Delay
When the charger detects a battery pack that is too hot or too cold, it
automatically starts a Hot/Cold Pack Delay, suspending charging until the
battery pack has reached an appropriate temperature. The charger then
automatically switches to the pack charging mode. This feature ensures
maximum battery pack life.
A cold battery pack will charge at a slower rate than a warm battery pack.
The battery pack will charge at that slower rate throughout the entire
26 into the charger, making sure the battery
Charging
Fully Charged
Hot/Cold Pack Delay*
on the battery pack.
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