Bergstrom K852 User manual

29.6V Flexi-Stick Vacuum
K852 v001: 14/09/22
Please read and retain these instructions for future reference
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Technical Data
Protection class....................................................................................III
Input: .......................................................................................DC 29.6V
Power Adapter
Protection class.....................................................................................II
Input: .............................................. AC 100–240V, 50/60Hz, 0.5A MAX
Output........................................................................... DC 35V, 500mA
Rechargeable battery........................................29.6V, 2200 mAh Li-Ion
Operating time..........30 minutes(high speed), 55 minutes (Eco Mode)
Charging time............................................................. approx. 4.5 hours
Dimensions
(H) 129 x (W) 23 x (D) 22cm
Folded Dimensions: 75 X 26 CM
Length of mains lead: 135cm, can be fed into charging mount to
make shorter
Material: ABS, Iron, Aluminium
Weight: 2.53kg
•FLEXI-STICK VACUUM HELPS YOU TO REACH ALL THE HARD TO
REACH AREAS
•REDUCES BENDING
•2 IN 1 CYCLONIC STICK AND HANDHELD VAC
•CORDLESS AND RECHARGEABLE
•TWO SPEED CONTROL
•0.6L DUST TANK
•SUPERIOR MESH COVER FILTER HELPS REMOVE THE
SMALLEST PIECES OF DUST
•ERGONOMIC COMFORT HANDLES
•WALL MOUNTED STORAGE AND CHARGING BASE.129 X 23 X
22 CM
•INCLUDES CHARGING BASE, POWER ROLLER BRUSH, 3 IN-1
NOZZLE, FOLDABLE METAL TUBE,
•LED LIGHTS ON THE MAIN HEAD (LED NOT REPLACEABLE)

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
WARNINGS AND SAFETY INSTRUCTIONS:
WHEN USING ELECTRICAL APPLIANCES, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED:
•READ ALL INSTRUCTIONS BEFORE USE.
•FOR DOMESTIC INDOOR USE ONLY.
•DO NOT USE OUTDOORS OR FOR COMMERCIAL USE.
•BEFORE USE, CHECK THOROUGHLY FOR ANY DEFECTS AND DO NOT USE IF DEFECTS ARE FOUND.
TAKE CARE NOT TO DROP THE APPLIANCE AS HEAVY IMPACTS MAY CAUSE INTERNAL DAMAGE.
•BEFORE CONNECTING THE APPLIANCE, CHECK IF THE VOLTAGE INDICATED ON THE BOTTOM OF THE
APPLIANCE IS IN ACCORDANCE WITH THE MAINS VOLTAGE IN YOUR HOME.
•CHECK THE APPLIANCE AND POWER CABLE CAREFULLY FOR DAMAGE BEFORE EACH USE.
•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.
•CHILDREN OF LESS THAN 3 YEARS SHOULD BE KEPT AWAY UNLESS CONTINUOUSLY SUPERVISED.
•SOME PARTS OF THIS PRODUCT CAN BECOME VERY HOT AND CAUSE BURNS. PARTICULAR
ATTENTION HAS TO BE GIVEN WHERE CHILDREN AND VULNERABLE PEOPLE ARE PRESENT.
•THE USE OF ANY ACCESSORY OR ATTACHMENTS NOT RECOMMENDED BY COOPERS OF STORTFORD
MAY CAUSE INJURIES AND INVALIDATE ANY WARRANTY YOU MAY HAVE.
•DO NOT LET THE POWER CABLE HANG OVER THE EDGE OF A TABLE OR COUNTER, OR TOUCH HOT
SURFACES.
•DO NOT PLACE ON OR NEAR HEAT SOURCES.
•DO NOT COVER THE ITEM IN ANY WAY WHEN IN USE AS THIS MAY CAUSE OVERHEATING.
•DO NOT USE THIS APPLIANCE FOR ANY OTHER USE THAN THE INTENDED USE IT IS DESIGNED FOR.
•ENSURE THERE IS SUFFICIENT DISTANCE BETWEEN THIS APPLIANCE AND OTHER ITEMS ON THE
WORK SURFACE OR WORK STATION, OR SUFFICIENT DISTANCE BETWEEN THE APPLIANCE AND THE
CONFINES OF THE AREA IN WHICH IT IS SITUATED. WE RECOMMEND A MINIMUM CLEARANCE
AROUND ALL FACES OF AT LEAST 10CM.
•TO PROTECT AGAINST ELECTRIC SHOCK, DO NOT IMMERSE POWER CABLE, PLUG OR APPLIANCE, IN
WATER OR ANY OTHER LIQUID.
•UNPLUG FROM OUTLET WHEN NOT IN USE AND BEFORE CLEANING.
•DO NOT OPERATE ANY APPLIANCE WITH A DAMAGED POWER CABLE OR PLUG OR AFTER THE
APPLIANCE MALFUNCTIONS, OR HAS BEEN DAMAGED IN ANY MANNER. WE RECOMMEND THAT THE
POWER CABLE IS NOT KINKED OR STORED IN A TWISTED MANNER, AND THAT YOU REGULARLY
CHECK ITS CONDITION.
•ANY REPAIRS MUST BE CONDUCTED BY A QUALIFIED ELECTRICIAN OR ELECTRICAL SERVICE AGENT.
ASSEMBLY INSTRUCTIONS / INSTRUCTIONS FOR USE:
Unpack the components carefully. Please check all parts have been removed from the packaging.

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Parts
1. Indicator lights
2. On/Off button
3. Rechargeable battery pack
4. Dust container
5. Max button
6. Combined tube
7. Folded sucking pipe
8. Combined floor brush
9. Floor brush
10. Release for suction pipe joint

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Rechargeable Lithium-Ion Batteries (Li-Ion)
The appliance is equipped with rechargeable Li-ion batteries. This results in numerous advantages compared
to other batteries and accumulators:
•A high cell voltage (more volts)
•No memory effect
•A low self-discharge
Safe Handling of Rechargeable Lithium-Ion Batteries
In general, Li-ion batteries are considered safe. Nevertheless, hazards may result from mechanical damage,
electrical faults and thermal effects.
Mechanical damage may result in the leakage of gaseous or liquid substances that can be highly irritating,
flammable or even toxic. An electrical fault, such as a short circuit, may lead to overheating and cause a fire.
Even the heating of the outer shell of a Li-ion battery, e.g. due to sunlight or a heating element, may lead to
fire or an explosion.
However, Li-ion batteries are safe when handled properly. Only if used or stored improperly they may
become dangerous. Therefore:
•Avoid temperatures above 40°C and below 0°C.
•Do not drop the appliance or the rechargeable battery.
•In case the Li-Ion battery has been dropped and is now damaged, stop using it.
•When storing or disposing of the appliance, mask the terminals to prevent short circuits.
•Dispose of old accumulators properly in collecting containers at the trader or at municipal collection
points.
Extending the Life of the Rechargeable Li-Ion Battery
For Li-ion batteries, even more than with other accumulators, their life can be extended by treating them
properly. The following simple rules for charging and storing help you keeping the capacity of the battery:
•Temperature: The ideal temperature for these batteries ranges from 10°C–25°C. Temperatures
above may lead to premature aging.
•Charging and discharging: During charging cycles, both full charge and deep discharge should be
avoided. When the charging process of the battery is completed, you should disconnect the charger
immediately. A charge up to 90% is considered best. Conversely, it is also preserving the battery
more when it is not discharged to 0%. If the possibility arises, you should already recharge the
battery when it is reaching a charge state of 30%.
•Storage: Always store batteries in a dry place and at moderate temperatures between 10°C and
20°C. Also consider the effect of self-discharge! When the accumulator is already empty, this effect
may lead to a deep discharge resulting in damaging the battery. If you intend to store the battery for
an extended period of time, you can counteract this effect. We then recommend charging the
battery to approx. 40% before storage. You should check the state of charge after not more than a
month.

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Unpacking the Appliance
1. Remove the appliance from its packaging.
2. Check the delivery scope for completeness.
1. Check the appliance for any transport damage, in order to prevent hazards.
NOTE:
In case of any transport damage, contact your dealer immediately. Do not use a damaged appliance!
Notes for Use
•The appliance is especially suitable for quickly vacuuming small amounts of dry dirt or dust.
•The appliance is operated via charged battery. Charging is done via the supplied power adapter.
•Direct power supply via power adapter is not possible.
•Hang the appliance onto the supplied wall mount when not in use. It also serves as a charging
station.
CAUTION:
The appliance cannot stand upright on its own. If you are not using the wall mount, gently place the vacuum
cleaner on the floor.
•This rechargeable battery vacuum cleaner is no adequate replacement for a conventional floor
vacuum cleaner. Especially on shag-pile carpet, the cleaning performance is not sufficient owing to
its design.
•Contaminated filters reduce the suction power of the vacuum cleaner.Therefore, we recommend
regular cleaning of the existing dirt filters.
•Ideally, clean the filters whenever they have been subject to a prolonged use.
•Please regularly check and clean the electric floor nozzle.
•If necessary, clean heavily soiled floors multiple times and/or use a conventional 230Va.c. floor
vacuum cleaner.
Switching the Appliance On/Off
•The button (4) turns the appliance on and off.
•Press the MAX button on the back of the handset to toggle between low and high power levels.
Start-Up
Suction Pipe
•The suction pipe is equipped with a joint. When tilted, it makes it easier for you to vacuum in places
that are hard to reach. For a rigid suction pipe, let the hinge joint audibly snap into place.
•Insert the suction pipe with the two contact pins into the connection on the hand unit. It must
audibly engage.
•To disconnect the suction pipe, press the release (6) and pull out the pipe at the same time.
Floor Nozzle with Turbo Brush
•The floor nozzle is suitable for all floor coverings except for shag-pile carpets.
•During operation, the LEDs on the floor nozzle light up for better visibility in dark areas.

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
CAUTION:
You cannot replace the LEDs.
•Stick the lower end of the suction pipe onto the connector on the floor nozzle. Note the contact pins
on the floor nozzle. The suction pipe must audibly snap into place.
•To disconnect the suction pipe, press the release (8) and pull out the pipe at the same time.
Combined Gap/Brush/Upholstery Nozzle (3 in 1)
•These accessories are always readily available when you keep them attached to the suction pipe
above the hinge joint, using the bracket.
•While using this nozzle as a gap nozzle, you will be able to suck dirt out of corners, grooves and small
gaps.
•To prevent scratching of the surface to be cleaned, use the gap nozzle along with the locked
brush/upholstery nozzle. This enables you to gently remove dirt from slits in upholstery and
mattresses. Also suitable for removing dust from sensitive surfaces such as furniture or curtains.
•To attach the brush/upholstery nozzle to the gap nozzle, first press the buttons on the side and then
slide the nozzle onto it, letting it audibly snap into place (as shown in the following picture).
•To release the lock, simply press both buttons again.
•There are two different ways for connecting this combined nozzle attachment to the appliance:
Connection at the Hand Unit
•Insert the gap nozzle with the unlocking facing up into the connection on the handset. It must
audibly snap into place.
•To release the nozzle, press the release button and pull it out at the same time.
Connection to the Suction Pipe
At the lower end of the suction pipe, you will find the same plug connection as on the handset.
Mount/dismount the nozzle as described above.
Assembly the Wall Holder

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Please take a look at the following Figure:
Charging the Rechargeable Battery
CAUTION:
Do not charge the rechargeable battery unsupervised.
1. Turn off the appliance.
2. Connect the power adapter to the machine, you can connect the power adapter to the rechargeable
battery pack directly If you need.
3. Charge the appliance for approx. 5 hours before first time use.
NOTE:
•The indicator lights show the state of charge of the rechargeable battery (25%, 50%, 100%).
•The appliance has electronic charge control, which prevents overcharging.
•Charging is completed when all 3 indicator lights are lit.
NOTE:
Even when switched off, the rechargeable battery discharges continuously. If the appliance is out of use for a
longer period of time, charge the rechargeable battery at least once every 4 to 6 weeks.
Using the Appliance

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
You can use the appliance as a floor vacuum cleaner or as a handheld and upright vacuum cleaner (basic
unit).
1. Disconnect the appliance from the power adapter.
2. Turn on the appliance.
3. If you would like to tilt the suction pipe at the joint, press the release (10).
NOTE:
•We recommend the higher power level for using the appliance with the floor nozzle. Press the MAX
button.
•During operation, depending on the charging capacity of the rechargeable battery, 1 to 3 indicators
are lit.
•We recommend recharging the battery once the indicator lights show a remaining capacity of only
25%.
•Once the capacity of the rechargeable battery is almost reaching its end, the last indicator light will
flash. To avoid a deep discharge of the rechargeable battery, the motor will shut off the appliance
accordingly. Recharge the battery.
End of Operation
1. Turn off the appliance.
2. If you have already installed the wall holder, hang up the vacuum cleaner.
Maintenance
The Filter System
Your appliance features 3 filters. The common dust bag system has been replaced by a transparent dust
collector. The higher flow speed of the collector allows for heavy dirt and smallest floating particles to be
separated from the “sucked-in air”. It is thus not necessary to buy dust bags. The filters must be cleaned
periodically.
CAUTION:
•Never wash the filter in the washing machine.
•Do not use a hairdryer for drying.
•Only put the appliance back into operation when all filters are completely dry and correctly
assembled.
The Filter Unit
The filter unit is composed of:
•Fine material filter
•Coarse filter

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Proceed as follows to clean the filter unit
Emptying the Dust Collector
1. Disconnect the appliance from the power adapter.
1. If necessary, remove the suction tube or the nozzle attachment from the appliance.
2. Please press the button on the dust container to release it from the handset.
3. Pull out the fine material filter on the coloured piece of fabric.
4. Pull out the coarse filter on its handle to remove it from the dust container.
5. Empty the contents of the dust collector.
Cleaning the Filters
1. Hold both filters over a dustbin and tap out the dust. You may also brush out the fine material filter.
In case of heavy staining, clean the filters under running water.
2. Let the filters air-dry completely before refitting them!
3. Wipe the dust collector with a damp cloth and then wipe it dry.
Assembly of the Filter Unit
1. Place the coarse filter in the dust container. Please note the recess on the edge of the dust
container. Now push the coarse filter down so that it is placed in the centre of the dust container.
2. Put the fine material filter (with the coloured fabric part facing up) onto the coarse filter. Firmly
press on the fine material filter.
3. Then reattach the dust container to the handset. First, place the dust container on top of the motor
housing. Now push the dust container down. The latch on the dust container must audibly snap into
place

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
.
Outlet Filter
The appliance is also equipped with an exhaust filter. It is located at the top of the motor housing.
CAUTION:
You cannot remove this filter.
Cleaning
WARNING:
•Always disconnect the appliance from the power adapter before cleaning!
•Under no circumstances should you immerse the motor housing in water in order to clean it.
Otherwise this might result in an electric shock or fire.
CAUTION:
•Do not use a wire brush or any abrasive items.
•Do not use any acidic or abrasive detergents.
•The single components are not dishwasher-safe.
•Wipe the casing with a damp cloth.
•You can wipe the power adapter unit with a dry cloth.
Floor Nozzle
1. Disconnect the floor nozzle from the suction pipe.
2. Turn the floor nozzle around, so that you see the lower side. Use a small coin or any other tool to
open the latch.
Direction of rotation:

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Counterclockwise. Flip the cover open.
3. Pull out the brush roller.
4. Remove threads and hair wound to the brush. please use the small hook(with the blade)
WARNING: it is dangerous for children to touch the small hook, because it has a tiny blade for cutting the
hair wound to the brush.
5. Assembly:
5.1 Put the brush roller, with the star-shaped recess first, back into the compartment.
5.2 Insert the other end of the brush roller with the square bearing into the recess underneath the cover.
6. Close the lock of the brush roller.
Storage
•Clean the appliance as described and allow it to dry.
•For storage, use the previously mounted wall bracket or carefully place the appliance on the floor.
•We recommend that you keep the appliance in the original packaging if it will not be used for long
periods.
NOTE concerning the life of the rechargeable battery:
Even when switched off, the rechargeable battery discharges continuously. When the appliance is out of use
for a longer period of time, charge the rechargeable battery at least once every 4 to 6 weeks.
•Always store the appliance out of the reach of children in a dry, well ventilated place.
•The storage temperature should be between 10°C and 20°C.

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
Troubleshooting
Problem
Possible cause
Remedy
The appliance does not
function.
The power adapter is
connected.
Disconnect the appliance from the power
adapter.
The rechargeable battery is
defect.
Contact Customer Services.
When the appliance is
switched on, all indicator
lights start flashing.
The rechargeable battery is
empty.
Charge the rechargeable battery.
Weak suction power.
The rechargeable battery is
nearly discharged.
Charge the rechargeable battery.
The dust container is full.
Empty the dust container.
The filters are dirty.
Clean the filters as described under
“Maintenance”.
CAUTION:
Restart operation only with dry filters.
Noise during operation.
A foreign body has been
sucked into the floor nozzle.
Remove the foreign body. If required,
disconnect the floor nozzle from the
suction pipe.
The floor nozzle with
turbo brush is not
operating.
The brush roller is blocked by
dirt.
Clean the floor nozzle as described under
“Cleaning”.
Incorrect assembly of suction
pipe and /or floor nozzle.
Check the assembling of the parts.
The rechargeable battery
does not keep the charge.
The rechargeable battery has
reached the end of its life.
Contact Customer Services.
PLUG WIRING (UK & IRELAND)

29.6V Flexi-Stick Vacuum K852 Instructions for Use
Please read and retain these instructions for future reference v001: 14/09/22
The Enterprise
Department
UK Head Office, 11 Bridge Street, Bishop’s Stortford, CM23 2JU
Tel: [phone] Fax: [phone]
www.coopersofstortford.co.uk
EU address: D.S.B. LD, 160 Bd. de Fourmies, 59100 Roubaix, France
Tel: [phone]
This appliance is supplied with a mains adaptor/charger with BS1363 plug pins.
DO NOT use If the socket outlets in your home or office are not suitable for this product’s mains adaptor/
charger plug pins. Attempts to insert the mains adaptor/charger into the wrong socket is likely to cause
electric hazard or damage.
DO NOT use with any other mains transformer/charger than the one that is supplied with this product.
DISPOSAL
•Coopers of Stortford use recyclable or recycled packaging where possible.
•Please dispose of all packaging, paper, cartons, packaging in accordance with your local
recycling regulations.
•At the end of the product’s lifespan please check with your local council authorised
household waste recycling centre for disposal.
•Plastics, polybags –this is made from the following recyclable plastic.
Code &
Symbol
Type of Plastic
Low Density Polyethylene
Commonly
used for
Shopping bags, bread bags, squeezy bottles, stretch/pallet wrap, bubble wrap, multi-
pack can holders
Notes
Usually recyclable supermarket deposit points. Check other plastic films as any non-
polythene film e.g. cling film, crisp packets film lids