DeWalt DCST922 Instruction Manual page 31

Important Safety Instructions for All
Battery Chargers

WARNING: Read all safety warnings, instructions,
and cautionary markings for the battery pack,
charger and product. Failure to follow the
warnings and instructions may result in electric
shock, fire and/or serious injury.
SAVE THESE INSTRUCTIONS - This manual contains
•
important safety and operating instructions for D
battery chargers.
DO NOT attempt to charge the battery pack with
•
any chargers other than a D
chargers and battery packs are specifically designed to
work together.
These chargers are not intended for any uses other
•
than charging D WALT rechargeable battery packs.
e
Charging other types of battery packs may cause them to
overheat and burst, resulting in personal injury, property
damage, fire, electric shock or electrocution.
Do not expose the charger to rain or snow.
•
Do not allow water or any liquid to enter charger.
•
Pull by the plug rather than the cord when
•
disconnecting the charger. This will reduce the risk of
damage to the electric plug and cord.
Make sure that the 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.
When operating a charger outdoors, always provide
•
a dry location and use an extension cord suitable
for outdoor use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
An extension cord must have adequate wire size for
•
safety. The smaller the gauge number of the wire, the
greater the capacity of the cable, that is, 16 gauge has
more capacity than 18 gauge. An undersized cord will
cause a drop in line voltage resulting in loss of power and
overheating. When using more than one extension to
make up the total length, be sure each individual extension
contains at least the minimum wire size. The following
table shows the correct size to use depending on cord
length and nameplate ampere rating. If in doubt, use the
next heavier gauge. The lower the gauge number, the
heavier the cord.
Voltage
Total length of cord in meters (m)
(Volts)
120–127V 0–7
220–240V 0–15
Rated
Minimal cross‑sectional area of the
ampere
Range
0–6A 1.0
6–10A 1.0
10–12A 1.5
12–16A 2.5
WALT charger. D
e
7–15 15–30
15–30 30–60
cord in meters (mm 2 )
1.5 1.5
1.5 2.5
1.5 2.5
4.0 Not Recommended
Do not place any object on top of the 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 the charger with a damaged cord
•
or plug. Have them replaced immediately.
Do not operate the charger if it has received a sharp
•
blow, been dropped or otherwise damaged in any
WALT
e
way. Take it to an authorized service center.
Do not disassemble the charger; take it to an
•
authorized service center when service or repair
WALT
e
is required. Incorrect reassembly may result in a risk of
electric shock, electrocution or fire.
The charger is designed to operate on standard
•
120V–127V (low voltage) or 220V–240V (high
voltage) household electrical power. Do not attempt
to use it on any other voltage. This does not apply to the
vehicular charger.
Foreign materials of a conductive nature, such as, but
•
not limited to, grinding dust, metal chips, steel wool,
aluminum foil or any buildup of metallic particles
should be kept away from the charger cavities and
ventilation slots.
Always unplug the charger from the power supply
•
when there is no battery pack in the cavity.
Charging a Battery (Fig. A, C, D)

WARNING: Only charge batteries in air temperatures
over 40 °F (4.5 °C) and below 104 °F (40 °C).
NoTE: To ensure maximum performance and life of Li-Ion
battery packs, charge the battery pack fully before first use.
NoTE: Refer to the label near indicator light(s) on charger for
on/off and blink patterns. Older chargers may have additional
information and/or may not have a yellow indicator light,
being equipped with only a single red indicator light.
1. Plug the charger into an appropriate outlet before
inserting battery pack
2. Insert and fully seat battery pack. The left indicator light
will continuously blink red to indicate that the charging
process has started. For two-stage chargers, this is
indicative of stage 1 charging during which the battery
pack is charged to a majority of its capacity.
3. Charging is complete for a single-stage charger when the
left indicator light remains continuously red and the right
indicator light stays unlit. For a two-stage charger, the
left indicator light remains continuously red and the right
indicator light continuously blinks red to indicate stage 2
charging during which the battery pack is topped off to
30–50
its full capacity. Stage 2 charging is complete when both
60–100
indicator lights remain continuously red. When charging
is complete, the battery pack may be removed and used,
or left in the charger.
The charger will not charge a faulty battery pack. The charger
2.5
refusing to light could indicate a problem with the charger
4.0
or a faulty battery pack. Discontinue use and take both to an
4.0
authorized service center.
12 .
ENglish
29