DeWalt DCH363KL Use and Care Manual download pdf (Page 10)

Charger Diagnostics

This charger is designed to detect certain problems that can arise

with the battery packs or the charger. Problems are indicated by the

three red lights flashing together in different patterns.

PROBLEM POWERLINE

When the charger is used with some portable power sources such

as generators or sources that convert DC to AC, the charger may

temporarily suspend operation. The three red lights will flash together

with two fast blinks followed by a pause. This indicates that the

power souce is out of limits.

BAD BATTERY

The charger can detect a weak or damaged battery. The three red

lights will flash together with rapid blinking. The battery will no longer

charge and should be returned to a service center or a collection site

for recycling.

BAD CHARGER

The charger will detect if it is not functioning properly. The three red

lights will flash together with one fast blink followed by a long

blink. The charger will no longer work and should be returned to an

authorized service center or replaced.

LEAVING THE BATTERY IN THE CHARGER

The charger and battery pack can be left connected with the red

lights glowing indefinitely. The charger will keep the battery pack

fresh and fully charged. This charger features an automatic tune-up

mode which equals or balances the individual cells in the battery

pack to allow it to function at peak capacity. Battery packs should

be tuned up weekly or whenever the battery no longer delivers the

same amount of work. To use the automatic tune-up mode, place the

battery pack in the charger and leave it for at least 8 hours.

Important Charging Notes

1. Longest life and best performance can be obtained if the battery

pack is charged when the air temperature is between 65 °F

and 75 °F (18 °–24 °C). DO NOT charge the battery pack in

an air temperature below +40 °F (+4.5 °C), or above +105 °F

(+40.5°C). This is important and will prevent serious damage to

the battery pack.

2. The charger and battery pack may become warm to touch 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.

3. If the battery pack does not charge properly:

a. Check operation of receptacle by plugging in a lamp or other

appliance;

b. Check to see if receptacle is connected to a light switch which

turns power off when you turn out the lights;

c. Move charger and battery pack to a location where the

surrounding air temperature is approximately 65 °F–75 °F

(18°– 24 °C);

d. If charging problems persist, take the tool, battery pack and

charger to your local service center.

4. The battery pack should be recharged when it fails to produce

sufficient power on jobs which were easily done previously. DO

NOT CONTINUE to use under these conditions. Follow the

charging procedure. You may also charge a partially used pack

whenever you desire with no adverse affect on the battery pack.

5. 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, grinding dust, metal chips, steel

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DeWalt DCH363KL Use and Care Manual Page 10

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