CTEK 1081, Switch mode Battery Charger, LITHIUM XS User Manual

EN

EN • 3

RESET

12V/5A

LiFe60

CONGRATULATIONS

To the purchase of your new professional switch mode batter y charger. This charger is
included in a series of professional chargers from CTEK SWEDEN AB and represents the
latest technology in battery charging. The LITHIUM XS charger model is designed for
Lithium-ion batteries using LiFePO

4

technology only. Please check with the battery manufac-

turer for details. Do not use the LITHIUM XS charger for any other battery technology.

CTEK COMFORT CONNECT – eyelet M6

CTEK COMFORT CONNECT

MAINS CABLE

CTEK COMFORT CONNECT – clamp

CHARGE CABLE

SUPPLY PLUG*

* Supply plugs may dif fer to suit yo ur wal l socket.

ERROR LAM P

FULLY CHARGEDREADY TO USE

POWER LAMP

HOW TO CHARGE

1. Connect the charger to the battery.

2. Connect the charger to the wall socket.

3. Follow the 8 -step display through the charging process.
The battery is ready to start the engine when STEP 3 is lit.
The battery is fully charged when STEP 7 is lit.

4. Stop charging at any time by disconnecting the mains cable from the wall socket.

RESET-BUTTON

MANUAL

BATTERIES WITH "UNDER VOLTAGE PROTECTION"

Some Lithium-ion batteries have an on-board UVP (under voltage protection) that
disconnects the battery to avoid it becoming too deeply discharged. This prohibits the
CTEK charger from detecting that there’s a battery connected. To bypass this, the bat­tery charger needs to open the UVP. By pressing the RESET-button for 10 seconds, the
charger opens the UVP. During this process, the charging STEP 7 is lit. Once the UVP has
been opened and the battery is ready to be charged, the charger automatically star ts the
charging cycle.

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BATTERY SIZE (Ah)

TIME TO 90% CHARGED

8Ah

2h

20Ah

5h

60Ah

16h

READY TO USE

The table shows the estimated time for an empty battery to reach 90%
state of charge (SOC). Please note that charging times are

longer in low ambient temperatures.

ERROR LAMP

If the error lamp is lit, check the following:

1. Is the chargers positive lead connected to the battery´s
positive pole?

2. Is the charger connected to a 12V LiFePO

4

battery?

3. Has charging been interrupted in STEP 1 or 4?

Restart the charger by pressing the RESET-button. If charging is still
being interrupted, the battery...

STEP 1: ...can not accept charge.

...may be too large for the charger to wake up. Press
RESET-button up to 5 times.
...a paralell load may be connected to the battery. Disconnect
the bat ter y and try again.

STEP 4: ...can not keep charge and may need to be replaced.

POWER LAMP

If the power lamp is lit with a:

1. STEADY LIGHT

The mains cable is connected to the wall socket.

2. FLASHING LIGHT:

The charger has entered the energy save mode. This happens if the
charger isn´t connected to the battery within 2 minutes or the battery on
board UVP (under voltage protection) is activated.

CONNECT AND DISCONNECT THE CHARGER TO A BATTERY

Comfort
Connect

INFO

If the batter y clamps are incorrectly
connected, the reverse polarity pro­tection will ensure that the battery
and charger are not damaged.

For batte ries mounted inside a
vehicle

1. Connect the red clamp to the bat­tery's positive pole.

2. Connect the black clamp to the
vehicle chas sis remote fro m the fuel
pipe and the batter y.

3. Connect the cha rger to the wall
socket.

4. Disconnect the charger from the
wall socket before disconnecting the
bat tery.

5. Disconnect the black clamp before
the red clamp.

Some vehicles may have pos i­tively earthed batteries.

1. Connect the black clamp to the bat­tery's negative pole.

2. Connect t he red clamp to t he vehi cle
chass is remote from t he fuel pipe and
the bat tery.

3. Connect the cha rger to the wall
socket.

4. Disconnect the charger from the
wall socket before disconnecting the
bat tery.

5. Disconnect the red clamp before the
black clamp.

1.

+

+

–

–

Comfort
Connect

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EN • 5

STEP 1 ACCEPT

Tests if the battery can accept charge. This step prevents that charging proceeds with a
defect battery.

STEP 2 BULK

Charging with maximum current until approximately 90% battery capacit y.

STEP 3 ABSORPTION

Charging with declining current to maximize up to 95% battery capacit y.

STEP 4 ANALYSE

Tests if the battery can hold charge. Batteries that can not hold charge may need to be
replaced.

STEP 5 COMPLETION

Final charge with increased current.

STEP 6 MAXIMIZATION

Final charge with maximum voltage up to 100% batter y capacity.

STEP 7 FLOAT

Maintaining the battery voltage at maximum level by providing a constant voltage charge.

STEP 8 PULSE

Maintaining the battery at 95–100% capacity. The charger monitors the batter y voltage
and gives a pulse when necessary to keep the battery fully charged.

CHARGING PROGRAM

ACCEPT BULK ABSORPTION ANALYSE COMPLETION MAXIMIZATION FLOAT PULSE

VOLTAGE (V)

1

1

7

2 3 4 5 6 8

CURRENT (A)

5A until 11.0V Increasing voltage to

13.8V
5A

Declining current

13.8V

Checks if voltage
drops to 12V

Max

1.5A

Max

14.4V

13.6V
5A

13.4V–13.8V

5.0–1.0A

Limit: Max 30s Max 10h Max 30h 3minutes Max 2h

10 days
Charge cycle restarts
if voltage drops

Charge cycle restarts
if voltage drops

6 • EN

SAFETY

• The charger is designed for charging 12V Lithium -ion batteries with LiFePO4 technol­ogy

. Do not use the charger for any other purpose.

• Never try to charge non rechargeable batteries.

• Check the charger cables prior to use. Ensure that no cracks have occurred in the
cables or in the bend protection. A charger with damaged cables must not be used.
A damage cable must be replaced by a CTEK representative.

• Never charge a damaged battery.

• Never charge a batter y with temperature below 0°C if not specified by the
battery manufacturer.

• Never place the charger on top of the battery when charging.

• Always provide for proper ventilation during charging.

• Avoid covering the charger.

• All batteries fail sooner or later. A bat tery that fails during charging is normally taken
care of by the chargers advanced control, but some rare errors in the bat tery could
still exist. Don’t leave any battery during charging unattended for a longer period of
time.

• Ensure that the cabling does not jam or comes into contact with hot surfaces or sharp
edges.

• Always check that the charger has switched to STEP 7 before leaving the charger
unattended and connected for long periods. If the charger has not switched to STEP 7
within 24 hours, this is an indication of an error. Manually disconnect the charger.

• This appliance is not designed for use by young children or people who cannot read
or understand the manual unless they are under the supervision of a responsible
person to ensure that they can use the battery charger safely. Store and use the bat­tery charger out of the reach of children, and ensure that children cannot play with the
charger.

• Connection to the mains supply must be in accordance with the national regulations
for electrical installations.

TECHNICAL SPECIFICATIONS

Model number

1081

Rated Voltage AC

220–240VAC, 50–60Hz

Charging voltage

13.8/14 . 4 V DC

Charging current

5A max

Current, mains

0.65A

rms

(at full charging current)

Back current drain*

<1Ah /m ont h

Ripple**

<4%

A mb i e nt ***
temperature

-20°C to +50°C, output power is reduced
automatically at high temperatures

Charger type

8 step, fully automatic charging cycle

Battery types

12V Li FeP O

4

batteries

Battery capacity

5–60Ah up to 120Ah for maintenance

Dimensions

168 x 65 x 40mm (L x W x H)

Insulation class

IP65

Weight

0.6kg

*) Back current drain is the current that drains the battery if the charger is not connected to
the mains. CTEK chargers have a very low back current.
**) The quality of the charging voltage and charging current is ver y important. A high cur­rent ripple heats up the battery which has an aging effect on the positive electrode. High
voltage ripple could harm other equipment that is connected to the battery. CTEK battery
chargers produce very clean voltage and current with low ripple.
***) The battery charger is designed to operate from -20°C to +50°C. However battery
manufacturers may recommend other temperature ranges for charging their batteries.
Please check battery specifications.

20018043B

EN

EN • 7

LIMITED WARRANTY

CTEK SWEDEN AB, issues this limited warranty to the original purchaser of this product.
This limited warranty is not transferable. The warranty applies to manufacturing faults
and material defects for 5 years from the date of purchase. The customer must return the
product together with the receipt of purchase to the point of purchase. This warrant y is
void if the battery charger has been opened, handled carelessly or repaired by anyone
other than CTEK SWEDEN AB or its authorised representatives. One of the screw holes
in the bottom of the charger is sealed. Removing or damaging the seal will void the war­ranty. CTEK SWEDEN AB makes no warrant y other than this limited warranty and is not
liable for any other costs other than those mentioned above, i.e. no consequential dam ­ages. Moreover, CTEK SWEDEN AB is not obligated to any other warranty other than this
warranty.

SUPPORT

CTEK offers a professional custom support: w ww.ctek.com.
For latest user manual see w ww.ctek.com. By e-mail: [e-mail],
by telephone: [phone], by fax [phone].

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