KRESS KA3706 Installation manual

SAFETY AND OPERATING MANUAL
Dual Port Battery Charger KA3706

2
Dual Port Battery Charger KA3706
Users can view the
electronic instructions at
https://www.kress.com/.
Original Instructions
PRODUCT SAFETY
GENERAL SAFETY
WARNINGS
WARNING Read all
safety warnings and all
instructions. Failure to follow
the warnings and instructions
may result in electric shock,
re and/or serious injury.
Save all warnings and
instructions for future
reference.
This appliance can be used
by children aged from 8 years
and above and persons with
reduced physical, sensory
or mental capabilities or
lack of experience and
knowledge if they have
been given supervision or
instruction concerning use
of the appliance in a safe
way and understand the
hazards involved. Children
shall not play with the
appliance. Cleaning and
user maintenance shall not
be made by children without
supervision.
If the supply cord is damaged,
it must be replaced by the
manufacturer, its service
agent or similarly qualied
persons in order to avoid a
hazard.
ADDITIONAL SAFETY
INSTRUCTIONS FOR
YOUR BATTERY
CHARGER
1. Before charging, read the
instructions.
2. Do not charge a leaking
battery.
3. Do not use chargers for
works other than those for
which they are designed.
4. Before charging, ensure
your charger is matching
the local AC supply.
5. For indoor use, or do not
expose to rain.
6. The charging device must
be protected from moisture.
7. Do not use the charging
device outdoors.
8. Do not short out the
contacts of battery or
charger.
9. Do not open the unit and
keep it out of the reach of
children.
10.Do not charge the batteries
of other manufactures or
ill-suited models.

3
Dual Port Battery Charger KA3706
11.Ensure that the connection
between the battery
charger and battery is
correctly positioned and is
not obstructed by foreign
bodies.
12.Keep battery charger’s
slots free of foreign objects
and protect against dirt and
humidity. Store in a dry and
frost-free place.
13.When charging batteries,
ensure that the battery
charger is in a well-
ventilated area and away
from inammable materials.
Batteries can get hot
during charging. Do not
overcharge any batteries.
Ensure that batteries
and chargers are not
left unsupervised during
charging.
14.Do not recharge non-
rechargeable batteries,
as they can overheat and
break.
15.Longer life and better
performance can be
obtained if the battery pack
is charged when the air
temperature is between
18oC and 24oC. Do not
charge the battery pack
in air temperatures below
0oC or above 40oC. This is
important as it can prevent
serious damage to the
battery pack.
16.Charge only battery packs
of models recommended
by Kress.
SYMBOLS
Read the operator’s manual.
Warning
For indoor use only
8 Fuse
Double insulation
Positive terminal
Negative terminal
Waste electrical products must not be
disposed of with household waste.
Please recycle where facilities exist.
Check with your local authorities or
retailer for recycling advice.

4
Dual Port Battery Charger KA3706
4
3
1
2
>20MM
4MM
A

5
Dual Port Battery Charger KA3706
COMPONENT LIST
1.BATTERY PACK*
2. CHARGER
3. CHARGE INDICATOR LIGHT
4. WALL-MOUNT HOLDER
*Not all the accessories illustrated or described
are included in standard delivery.
We recommend that you purchase your accessories
listed in the above list from the same store that sold you
the tool. Refer to the accessory packaging for further
details. Store personnel can assist you and offer advice.
TECHNICAL DATA
Rated Input voltage 220-240 V~50 Hz
Output voltage 60V
Charging current 8 A
Rated Input power 580 W
Battery type Li-Ion
Charging time (approx.)
Battery pack 2.0 Ah(1pc) Approx. 25 mins
2.0 Ah(2pcs) Approx. 30 mins
2.5 Ah(1pc) Approx. 30 mins
2.5 Ah(2pcs) Approx. 40 mins
4.0Ah (1pc) Approx. 30 mins
4.0 Ah(2pcs) Approx. 60 mins
5.0Ah (1pc) Approx.40 mins
5.0 Ah(2pcs) Approx. 75 mins
Protection class /II
Machine weight 2.8 kg
For the technical data of the types, the number of cells
and the rated capacity of the batteries that can be
charged, please refer the nameplate of the battery pack
supplied by Kress.
CHARGING PROCEDURE
NOTE: Before using the tool, read the instruction
book carefully.
You can get the manual through other ways,such as
consulting after- sales department.
CHARGING INSTRUCTIONS
1. CHARGING YOUR BATTERY PACK
This charger is designed to charge one or two battery
packs together or in a row.
WARNING:
The charger and battery pack are specically
designed to work together so do not attempt to use any
other devices to charge. Never insert or allow metallic
objects into your charger or battery pack connections
because an electrical failure and hazard will occur.
2. BEFORE USING YOUR CORDLESS TOOL
Your battery pack is partly charged and needs to be fully
charged before rst use.
3. HOW TO CHARGE YOUR BATTERY PACK
CHARGING PROCEDURE
1) Plug the charger into an appropriate outlet.
2) Slide one battery pack or two battery packs into the
charger. Normally, the relevant indication lights (3)
will ash in green color showing the battery is being
charged.
WARNING: When battery charge runs out
after continuous use or exposure to direct
sunlight or heat, allow time for the battery to
cool down before re-charging to achieve the full
charge.
CHARGING INDICATOR LIGHTS
This charger is a “smart charger” that is designed to
provide you information on the status of your battery
charge. Indicator lights n the table below will show
the charging status.If you receive a defective battery
indication light (red on), insert a new battery to determine
if the charger is OK.. If the new battery pack charges
correctly, then the original pack is defective and should
be returned to a service center or recycling service
center. If the new battery pack displays the same
problem as the original battery pack, have the charger
tested at an authorized service center.
Light ON/ flash Status
Green on
Fully Charged
Green ash
- - - - - - Charging
Red on
Defective Battery
Red ash
- - - - -
Battery Temperature
Protection
The temperature of
battery pack is less than
0oC or more than 60oC.
DEFECTIVE BATTERY PACKS
This charger will detect a defective battery pack. When
a defective battery pack is inserted into the charger, the

6
Dual Port Battery Charger KA3706
charger will try to repair it. This process will last about
30mins (the light will be green and ash). If the repair
is successful, the charger will automatically begin to
charge the battery pack to the highest capacity possible
(the light will be green and ash). If the light becomes
solid red, then the battery pack is dead, and should be
returned to a service center or recycling service center.
NOTE: Repaired battery packs are still usable but
should not be expected to perform as much work as
new battery packs.
BATTERY TEMPERATURE PROTECTION
This charger has a battery temperature protection
feature. When the charger detects a battery pack that
is too hot (the light will be red and ash), its internal fan
will rapidly cool the battery to the correct temperature.
When the charger detects a battery pack that is too cold
(the light will be red and ash), it automatically activates
the protection circuit, and suspends charging until the
battery pack has reached the correct temperature.The
charging process will then automatically begin (the light
will be green and ash). This feature ensures maximum
battery life.
LEAVING THE BATTERY PACK IN THE CHARGER
If a fully charged battery pack is left in the charger, the
light will remain green. The battery pack will remain
charging with a maintenance trickle current.
NOTE: it is recommended to put out the battery from
the charger after fully charged and not store your battery
in the charging device for a longer period.
WALL-MOUNT HOLDER
The charger is equipped with the Wall-mount holder for
convenient storage. Fix the holder onto the wall tightly
enough by screws(not provided ) to make sure it can
hold the combined weight of the charger and battery
pack.(See Fig. A)
WARNING:Be careful when insert and pull
off the batteries from a hanging charger.
IMPORTANT CHARGING NOTES:
1. For a new battery pack or a battery pack that has
been in storage for a long period, please recharge it
before use. If you want to store the battery pack for
a long time, please fully charge the battery pack to
ensure maximum battery life.
2. Longer life and better performance can be
obtained if the battery pack is charged when the air
temperature is between18-240C. Do not charge the
battery pack in air temperatures below 00C, or above
400C. This is important as it can prevent serious
damage to the battery pack.
3. Never freeze your charger or immerse charger in
water or any other liquid.
4. When the battery pack fails to produce sufcient
power on jobs that were previously done easily,
please recharge your battery pack, do not continue
using it under this condition. You may charge a
partially used pack whenever you desire with no
adverse affect on the battery pack.
5. When charging it is normal that the charger and
battery pack may become gently warm to touch.
6. If the battery pack does not charge properly:
a. Check current at power outlet by plugging in another
appliance.
b. Plug and unplug to check whether the charger is ok
c. Check whether the battery pack has been damaged
d. Move the charger and battery pack to a location
where the surrounding air temperature is
approximately 18-240C.
e. If the charging problem persists, take the tool,
battery pack and charger to an authorized service
center.
f. Under certain conditions, when the charger is
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 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 charger or before attempting to
clean.
PROBLEM SOLUTION
I CANNOT FIT THE BATTERY PACK INTO THE
BATTERY CHARGER. WHY?
a) Check if the charger and the battery pack are
specically designed for working together.
b) The battery pack can be inserted into the charger
only in one direction. Turn the battery pack around
until it can be inserted into the slot, the indicator light
should be green and ash when the battery pack is
charging.
REASONS FOR DIFFERENT CHARGING TIMES
The charging time can be affected by many reasons
which are not defects in your product.
a) If the battery pack is only partly discharged it may be
re-charged in less than rated charging time.
b) If the battery pack and ambient temperature are very
cold/hot, it may take longer to re-charge. Please
nd an appropriate environment with proper air
temperature to start charging.
c) Batteries of higher Amp Hour rating require more
charging time.
MAINTENANCE
Remove the plug from the socket before
carrying out any adjustment, servicing or
maintenance.
Your battery charger requires no additional lubrication or
maintenance. Never use water or chemical cleaners to
clean your charger. Wipe clean with a dry cloth. Always
store your charger in a dry place.
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualied
persons in order to avoid a hazard.

7
Dual Port Battery Charger KA3706
ENVIRONMENTAL
PROTECTION
Waste electrical products must not be disposed
of with household waste. Please recycle where
facilities exist. Check with your local authorities
or retailer for recycling advice.
PLUG
REPLACEMENT(ONLY FOR
REWIRABLE PLUG OF UK
& IRELAND)
If you need to replace the tted plug then follow the
instructions below.
IMPORTANT
The wires in the mains lead are colored in accordance
with the following code:
BLUE = NEUTRAL
BROWN = LIVE
As the colors of the wires in the mains lead of this
appliance may not correspond with the colored
markings identifying the terminals in your plug, proceed
as follows. The wire which is colored blue must be
connected to the terminal which is marked with N. The
wire which is colored brown must be connected to the
terminal which is marked with L.
WARNING! Never connect live or neutral wires to
the earth terminal of the plug. Only t an approved
BS1363/A plug and the correct rated current fuse
which is used in the plug.
NOTE: If a moulded plug is tted and has to be
removed take great care in disposing of the plug and
severed cable, it must be destroyed to prevent engag-
ing into a socket.
C
onnect
Blue to N
(neutral)
Outer sleeve
firml
y
clam
p
ed
Cable grip
Brown L (live)
Fuse

8
Dual Port Battery Charger KA3706
DECLARATION OF
CONFORMITY
We,
Positec Germany GmbH
Postfach 32 02 16, 50796 Cologne, Germany
On behalf of Positec declare that the product
Description Kress Battery Charger
Type KA3706
Complies with the following Directives,
2014/35/EU
2014/30/EU
2011/65/EU&(EU)2015/863
Standards conform to
EN 60335-1
EN 60335-2-29
EN 62233
EN IEC 55014-1
EN IEC 55014-2
EN IEC 61000-3-2
EN 61000-3-3
2021/01/12
Allen Ding
Deputy Chief Engineer Testing & Certication
Positec Technology (China) Co., Ltd
18, Dongwang Road, Suzhou Industrial
Park, Jiangsu 215123, P. R. China

9
Dual Port Battery Charger KA3706
DECLARATION OF
CONFORMITY
We,
Positec (UK & Ireland) Ltd,
PO Box 6242, Newbury, RG14 9LT, UK
On behalf of Positec declare that the product
Description Battery Charger
Type KA3706
Complies with the following Directives,
Electrical Equipment (Safety) Regulations 2016
Electromagnetic Compatibility Regulations 2016
The Restriction of the Use of Certain Hazardous
Substances in Electrical and Electronic
Equipment Regulations
Standards conform to
BS EN 60335-1,
BS EN 60335-2-29,
BS EN 62233,
BS EN IEC 55014-1,
BS EN IEC 55014-2,
BS EN IEC 61000-3-2,
BS EN 61000-3-3,
2021/01/12
Allen Ding
Deputy Chief Engineer Testing & Certication
Positec Technology (China) Co., Ltd
18, Dongwang Road, Suzhou Industrial
Park, Jiangsu 215123, P. R. China

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AR01587102