CTEK MULTI XS 25000 User manual

Battery Charger
MULTI XS 25000, XS 25000
MULTI XT 14000, XT 14000
For lead-acid batteries
User Manual and Guide to professional
charging of starter and deep cycle batteries.

2 • GB
INTRODUCTION
Congratulations on purchasing your new CTEK professional switch mode battery charger. This charger is part of a range of profes-
sional battery chargers from CTEK SWEDEN AB. It represents the latest technology in battery charging with charging and analysis
in eight steps with temperature compensation. Read this User Manual and follow the instructions carefully before using your
new charger.
SAFETY
The charger is designed for lead-acid batteries. Do not use the charger for any other purpose
Use safety glasses and turn your head away when connecting or disconnecting a battery.
Batteryacidiscorrosive.Rinseimmediatelywithwaterifacidcomesintocontactwithskinoreyes.Seekmedicaladvice.
Makesurethatthecableisnotpinchedorincontactwithwarmsurfacesorsharpedges.
Whilecharging,abatterycanemitexplosivegases,soitisimportanttoavoidsparksintheimmediatearea.
Always provide for proper ventilation during charging.
Avoidcoveringthecharger.
Make sure that the electrical cable does not come into contact with water.
Neverchargeafrozenbattery.
Never charge a damaged battery.
Do not place the charger on the battery while charging.
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Checkthechargercablingbeforeuse.Makesuretherearenocracks in the cabling or in the protective covering. A charger with
damagedcablesmaynotbeused.
Always check that the charger has gone over to maintenance charging mode before leaving the charger unattended and
connected for long periods. If the charger had not gone over to maintenance charging within 3 days, this is an indication of a
problem. In this case the charger must be disconnected manually.
All batteries fail sooner or later. A battery that fails during charging is normally taken care of by the chargers advanced control,
but certain uncommon errors in the battery can still arise. Don’t leave the battery charger unattended for a longer period of time.
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byaresponsiblepersonwhocanguaranteethatthebatterychargerisbeingusedinasafemanner.Storeandusethebattery
chargeroutofthereachofchildren.Makesurethatchildrendonotplaywiththebatterycharger.
When using outdoors the charger has to be positioned horizontally with the long side or top side turned up.
CHARGING
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1.Thepowercordshouldbedisconnectedwhenconnecting or disconnecting the battery leads.
2. Identify the battery terminal that is grounded (connected to the chassis). The negative terminal is normally the grounded post.
3. Charging a negatively grounded battery. Connect the red cable tothepositiveterminalonthebatteryandtheblackcableto
good metal engine ground away from the battery. Ensure you do not connect the black cable to fuel lines or sheet-metal body
parts.
4. Charging a positively grounded battery. Connect the black cable to the negative terminal on the battery and the red cable to
good metal engine ground away from the battery. Ensure you do not connect the red cable to fuel lines or sheet-metal body parts.
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1.Thepowercordshouldbedisconnectedwhenconnecting or disconnecting the battery leads.
2. Connect the red cable to the positive terminal on the battery and the black cable to the negative terminal.
If the battery leads have been connected incorrectly, the reverse polarity protection system will ensure that neither the charger nor
thebatteryaredamaged.
Start charging
1. Connect the chargers AC cord to an AC Power Supply. The charger will indicate POWER, yellow indication lamp (B).
2. The lamp for completely discharged battery (1) will illuminate if the battery’s voltage is less than 12V for MULTI XS 25000 and
XS 25000 or 24V for MULTI XT 14000 or XT 14000.
3.Normalchargingwillbeindicatedbythefollowinglights:completelydischargedbattery(1),bulkcharging(2),absorption
charging (3) or maintenance charging (4). When the maintenance charging lamp illuminates the battery is fully charged. Charging
will start if the voltage drops. The charger can normally be connected for months. Reconditioning (only on MULTI XS 25000 and
MULTIXT14000)isindicatedbythelamp(5)illuminating.
4. If the battery leads have been connected incorrectly, the reverse polarity protection system will ensure that neither the charger
northebatteryaredamaged.
5.Ifnothinghappens.Ifthelampindicatingthesettingandthepowerlampremainlitbutnootherlampilluminates,theconnection
tothebatteryorchassismaybepoororthebatterymaybefaulty.AnothercausemaybealackofvoltageintheACPowerSupply.
Begin by improving the connection between the battery and charger.
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GB • 3
6.Chargingcanbestoppedatanytimebydisconnectingthecharger’sACcord.AlwaysdisconnecttheACcordbefore
disconnecting the battery leads. When you stop charging a battery installed in a vehicle you should always disconnect the battery
lead from the chassis before disconnecting the other battery lead.
IMPORTANT INFORMATION FOR MULTI XT 14000 AND XT 14000
Pleasenotethatthebatterypackinthe24Vsysteminmostcasesconsistsofmorethanonebattery.Theyarelinkeduptothe
24V system, but the individual batteries generally have a lower voltage. Therefore it is important for the charger to be connected
correctly.
BATTERY TYPES AND SETTINGS
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MULTIXT14000caneasilybesetfordifferenttypesofbatteriesorconditions.Thefollowingrecommendationsshould,however,
only be seen as guidelines. Please consult the battery manufacturer for further instructions.
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thebuttonisthenreleased.Afterabout2secondsthechargeractivatestheselectedmode.Theselectedmodeissavedina
memory in the charger and remains there even if the charger is disconnected from battery and mains.
NORMAL NORMAL - Normal setting for wet batteries, maintenance free and for most Gel batteries. Some Gel batteries
prefer a slightly lower charging voltage. Please consult the battery manufacturer when in doubt.
SUPPLY SUPPLY - The charger operates at a constant voltage. This is the maintenance mode for applications where
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protection function is suppressed in this mode.
RECOND
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Use this mode with care, because the high voltage will cause some water loss. 16V is normally no problem for
electronics in 12V system, or 32V in 24V system. Consult your supplier when in doubt. Life of light bulbs will
be reduced at higher voltage. Try to disconnect light from the battery during this phase. Maximum effect and
minimum risk for electronics is achieved by charging a disconnected battery.
CHARGING PHASES
MULTI XS 25000, XS 25000, MULTI XT 14000 and XT 14000 charges and analyses in eight fully automatic steps.
MULTI XS 25000 and MULTI XT 14000 have three different operating modes, see Battery Types and Settings.
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Desulphation
Desulphation with pulses recovers sulphated batteries. Indicates with lamp 1.
Soft start (Lamp 1)
Start mode for the charging cycle. The start phase continues until the battery’s terminal voltage has risen above the set limit, at
which point the charger switches to bulk charging. If the terminal voltage has not passed the voltage limit within the time limit, the
chargerswitchestofaultmode(lamp0)anddiscontinuesthecharging.Ifso,thebatteryisfaultyoritscapacityistoolarge.
Bulk (Lamp 2)
Main charge when 80% of charging takes place. The charger delivers maximum current until the terminal voltage has risen to the
set level. Bulk has a maximum time, at which point the charger automatically switches to Absorption.
Absorption (Lamp 3)
Complete charge up to virtually 100%. The terminal voltage is maintained at the set level. During this phase the current tapers suc-
cessively. Once the current has tapered to the set limit, this phaseswitchestobeingtimed.IfthetotaltimeforAbsorptionexceeds
the time limit the charger automatically switches to maintenance.
Analysis (Lamp 3)
Testing self-discharge. If self-discharge is too high, charging is discontinued and fault mode is indicated.
Maintenance charging - Float (Lamp 4)
Charging at constant voltage.
Maintenance charging - Pulse (Lamp 4)
Stateofchargevariesbetween95%and100%.Thebatteryreceivesapulsewhenthevoltagedropsandkeepsthebatteryin
perfectconditionwhenitisnotinuse.Thechargercanbeconnectedformonthsatatime.Thechargercontinuouslymeasures
theterminalvoltagetodeterminewhetherachargingpulseshouldbeinitiated.Ifthebatteryisloadedand/orthebattery’sterminal
voltagedropsthechargerstartsachargingpulseuntiltheterminalvoltagereachesthesetlevel.Thechargingpulseisthen
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back to the beginning of the charging curve.

4 • GB
Recond (Lamp 5) (only on MULTI XS 25000 and MULTI XT 14000)
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increases with reduced current for a limited time period. The higher voltage starts some gassing and mixing of the acid, which is
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performed between Analysis and Maintenance.
INDICATORS
Lamp Description
0Fault mode, the charging is discontinued. For fault causes, see below.
1Start mode
2Bulk charging
3Absorption charging
4Maintenance charging
5Supply (Only on MULTI XS 25000 and MULTI XT 14000)
6Recond reconditioning of completely discharged batteries. (Only on MULTI XS 25000 and MULTI XT 14000)
ACharging without temperature compensation.
BMains voltage connected
CNormal (Only on MULTI XS 25000 and MULTI XT 14000)
DSupply (Only on MULTI XS 25000 and MULTI XT 14000)
ERecond (Only on MULTI XS 25000 and MULTI XT 14000)
Fault mode
The charger goes to fault mode in the following situations:
The battery is connected with poles reversed to the charger's terminals.
The charger’s analysis function has interrupted charging.
The terminals on the charger are short-circuited after charging has started.
Thechargerhasbeeninstartmodeformorethan4hours.
TEMPERATURE COMPENSATION
MULTIXS25000,XS25000,MULTIXT14000andXT14000haveasensorcableplacedtogetherwiththebatterycables.The
units will automatically adjust the charging voltage if the temperature deviates from +25°C. A high temperature lowers the voltage
and freezing conditions is handled by higher voltage.
The temperature is best measured on or very close to the battery. Therefore always place the sensor as close to the battery as
possible when charging. The sensor cable could be prolonged or cut to length with the same functionality. A short-circuited or
disconnected sensor is indicated by lamp A. The charging voltage is then adjusted to the +25°C condition.
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GB • 5
SPECIFICATION
MULTI XS 25000
XS 25000
MULTI XT 14000
XT 14000
Voltage AC 170–260VAC, 50–60Hz.
Charging voltage 14.4V 28.8V
Charging current 25A max. 14A max.
Current, mains 2.9A rms (at full charging current)
Back Current Drain* <2Ah per month
Current ripple** <4%
Ambient temperature -20°C to +50°C Output power is automatically reduced at higher temperatures.
Cooling Fan
Charger type Eight-step, fully automatic
Battery types All types of 12V lead-acid batteries
(WET, MF, AGM and GEL).
All types of 24V lead-acid batteries
(WET, MF, AGM and GEL).
Battery capacity 50–500Ah 28–300Ah, up to 500Ah maintenance
Protection class IP44 (Outdoor use)***
Weight 1.9kg
*) Back current drain is the current that the charger drains from the battery if the AC cord is disconnected.
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***) IP44 cannot be guaranteed if the charger is not positioned horizontally with the long side or top side turned up.
MAINTENANCE
The charger is maintenance-free. The charger must not be opened; doing so will invalidate the warranty. If the power cable is
damaged it must be replaced by CTEK or its authorized representative. The charger casing can be cleaned using a damp cloth and
mild cleaning agent. Remove the plug from the power socket before cleaning.
LIMITED WARRANTY
CTEK SWEDEN AB, Rostugnsv. 3, SE-776 70 VIKMANSHYTTAN, SWEDEN issues this limited warranty to the original purchaser
ofthisproduct.Thislimitedwarrantyisnottransferable.CTEKSWEDENABwarrantsthisunitfortwoyearsfromthedateof
purchase against defect workmanship or material. It is the obligation of the purchaser to forward the unit together with proof of pur-
chase to the manufacturer or its representative with transportation cost prepaid. This warranty is void if the unit is abused, handled
carelessly or repaired by anyone other than CTEK SWEDEN AB or its authorized representative. CTEK SWEDEN AB makes no
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damages. This is the only expressed limited warranty and CTEK SWEDEN AB neither assumes nor authorizes anyone to assume
or make any other obligation towards the product other than this limited warranty.
DECLARATION OF CONFORMITY
CTEK SWEDEN AB hereby declares under sole responsibility that the MULTI XS 25000, XS 25000, MULTI XT 14000 and
XT 14000 battery chargers, to which this declaration relates, conforms with the following standards: EN60335-1, EN60335-2-29
followingtheprovisionsofdirective73/23/EECamendedby93/68/EECandEN61000-3-3,EN61000-3-2,EN55014-1,EN55014-2,
55011followingtheprovisionsofdirective89/336/EECamendedby92/31/EECand93/68/EEC.
Vikmanshyttan Sweden, 01-01-2006
Börje Maleus, Managing Director, CTEK SWEDEN AB
CTEK SWEDEN AB
Rostugnsvägen 3
SE-776 70 VIKMANSHYTTAN
www.ctek.com

6 • GB
PARAMETERS
PROGRAM DESCRIPTION
Current (Amperes)
Voltage (Volts)
Desulphation Soft Start Bulk Absorption
Recovers a
sulphated battery
Tests the battery
condition Bulk charge Peak charge with PLQLPDOÀXLGORVV
MULTI XS 25000
MODE Desulphation Soft Start Bulk Absorption
NORMAL
or
RECOND
YES Max25Afor4huntilthe
voltage reaches 12.6V.
25A for max 20h. 14.4V until after the
current dropped to 4.5A,
max 12h.
SUPPLY
XS 25000
MODE Desulphation Soft Start Bulk Absorption
PRESET YES Max25Afor4huntilthe
voltage reaches 12.6V.
25A for max 20h. 14.4V until 4h after the
current dropped to 4.5A,
max 12h.
MULTI XT 14000
MODE Desulphation Soft Start Bulk Absorption
NORMAL
or
RECOND
YES Max 14A for 4h until the
voltage reaches 25.2V.
14Aformax20h. 28.8Vuntil4hafterthe
current dropped to 2.5A,
max 12h.
SUPPLY
XT 14000
MODE Desulphation Soft Start Bulk Absorption
PRESET YES Max 14A for 4h until the
voltage reaches 25.2V.
14Aformax20h. 28.8Vuntil4hafterthe
current dropped to 2.5A,
max 12h.

GB • 7
Analysis Recond Float Pulse
Tests whether the
battery retains
the energy
Reconditioning of
a drained battery
Maintenance for
maximum
performance
Maintenance for
maximum
battery life
Analysis Recond Float Pulse
Warningindicationif
voltage drops to 12.0V in
3 minutes.
Max 15.8V and 3A for
4h for deeply discharged
batteries. Otherwise
for 30 minutes (only in
Recond mode).
13.6Vwithmax25Afor
max10days.
Pulse start at 12.9V, max
voltage 14.4V.
13.6V max 25A.
Analysis Recond Float Pulse
Warningindicationif
voltage drops to 12.0V in
3 minutes.
13.6Vwithmax25Afor
max10days.
Pulse start at 12.9V, max
voltage 14.4V.
Analysis Recond Float Pulse
Warningindicationif
voltage drops to 24.0V in
3 minutes.
Max 31.6V and 1.7A for
4h for deeply discharged
batteries. Otherwise
for 30 minutes (only in
Recond mode).
27.2Vwithmax14Afor
max10days.
Pulse start at 25.8V, max
voltage 28.8V.
27.2V max 14A.
Analysis Recond Float Pulse
Warningindicationif
voltage drops to 24.0V in
3 minutes.
27.2Vwithmax14Afor
max10days.
Pulse start at 25.8V, max
voltage 28.8V.

8 • GB