CTEK 1018 User manual

MULTI US 7002
Battery Charger
For lead-acid batteries 14–150Ah
User Manual and Guide to professional
charging of starter and deep cycle batteries.
Model 1018
US

2 • US
INTRODUCTION
The MULTI US 7002 is a primary switch mode battery charger with pulse maintenance.
The MULTI US 7002 is designed to offer maximum life for the battery. MULTI US 7002
is a member of a family of professional chargers from CTEK Power Inc. It represents the
state-of-the-artoftoday’stechnologyforbatterycharging.Pleasereadtheseoperating
instructions carefully before operating the MULTI US 7002.
IMPORTANT SAFETY INSTRUCTIONS
California Proposition 65
WARNING: This product contains chemical known to the state of California to cause
cancer or reproductive toxicity.
SAVE THESE INSTRUCTIONS – This manual contains
importantsafetyandoperatinginstructionsforbatterychargermodels1018.
When charging, batteries can emit explosive gases, therefore it is essential to pre-
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from 14 to 150Ah. Do not use for any other purpose. Do not expose to rain or snow.
Always provide good ventilation when charging.
Useofanattachmentnotrecommendedorsoldbythebatterychargermanufac-
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To reduce risk of damage to electric plug and cord, pull by the plug rather than cord
when disconnecting charger.
An extension cord should not be used unless absolutely necessary. Use of im-
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sion cord must be used, make sure that: a) Pins on plug of extension cord are the
same number, size and shape as those of plug on charger; b) Extension cord is
properly wired and in good electrical condition; and c) Wire size is large enough for
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Donotoperatechargerwithdamagedcordorplug–returnthechargertothe
place where purchased.
Neveroperatethechargerifithasreceivedasharpblow,beendroppedorother-
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To reduce risk of electric shock, unplug chargerfromACoutletbeforeattempting
any maintenance or cleaning. Turning off controls will not reduce the risk.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

US • 3
WARNING-RISKOFEXPLOSIVEGASES
WORKINGINVICINITYOFALEAD-ACID
BATTERYISDANGEROUS.BATTERIES
GENERATE EXPLOSIVE GASES DURING
NORMALBATTERYOPERATION.FORTHIS
REASON,ITISOFUTMOSTIMPORTANCE
THAT, YOU FOLLOW THE INSTRUCTIONS
EACHTIMEYOUUSETHECHARGER.
To reduce risk of battery explosion, follow these instructions and those published
by the battery manufacturer and the manufacturer of any equipment you intend
to use in vicinity of battery. Review cautionary marking on these products and
on engine.
PERSONAL PRECAUTIONS
Consider have some one close enough by to come to your aid when you work near
a lead-acid battery.
Haveplentyoffreshwaterandsoapnearbyincasebatteryacidcontactsskin,
clothingoreyes.
Wear complete eye protection and clothing protection. Avoid touching eyes while
working near battery.
If battery acid contacts skin or clothing, wash immediately with soap and water.
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minutes and get medical attention immediately.
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Be extra cautious to reduce risk of dropping a metal tool onto battery. It might spark
or short-circuit battery or other electrical part that may cause explosion.
Remove personal metal items such as rings, bracelets, necklaces, and watches
when working with lead-acid battery. A lead-acid battery can produce a short-cir-
cuitcurrenthighenoughtoweldaringortheliketometal,causingasevereburn.
UsechargerforchargingaLEAD-ACIDbatteryonly.Itisnotintendedtosupply
powertoalowvoltageelectricalsystemotherthaninastarter-motorapplication.
Do not use battery charger for charging dry-cell batteries that are commonly used
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damage to property.
Neverchargeafrozenbattery.
11.
a)
b)
12.
a)
b)
c)
d)
e)
f)
g)
h)
i)

4 • US
PREPARINGTOCHARGE
Ifnecessarytoremovebatteryfromvehicletocharge,alwaysremovegrounded
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nottocauseanarc.
Be sure area around battery is well ventilated while battery is being charged.
Clean battery terminals. Be careful to keep corrosion from coming in contact
with eyes.
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as valve regulated lead acid batteries, carefully follow manufacturer’s recharging
instruction.
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mended rates of charge.
Determinevoltageofbatterybyreferringtocarowner’smanualandmakesurethat
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charge rate, charge battery initially at lowest rate.
CHARGER LOCATION
LocatechargerasfarawayfrombatteryasDCcablespermit.
Never place charger directly above battery being charged; gases from battery will
corrode and damage charger.
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Donotoperatechargerinaclosed-inareaorrestrictventilationinanyway.
Donotsetabatteryontopofcharger.
DC CONNECTION PRECAUTIONS
Connect and disconnect dc output clips only after setting any charger switches to
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each other.
Attach clips to battery and chassis as indicated in 16(e), 16(f), 17(b) through 17(d).
FOLLOW THESE STEPS WHEN BATTERY
ISINSTALLEDINVEHICLE.ASPARK
NEARBATTERYMAYCAUSEBATTERY
EXPLOSION. TO REDUCE RISK OF A SPARK
NEAR BATTERY:
13.
a)
b)
c)
d)
e)
f)
14.
a)
b)
c)
d)
e)
15.
a)
b)
16.

US • 5
PositionACandDCcordstoreduceriskofdamagebyhood,doorormoving
engine part.
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persons.
Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has
larger diameter than NEGATIVE (NEG, N, -) post.
Determinewhichpostofbatteryisgrounded(connected)tothechassis.Ifnega-
tivepostisgroundedtothechassis(asinmostvehicles)see(e).Ifpositivepostis
groundedtothechassis,see(f).
ForNegative-groundedvehicle,connectPOSITIVE(RED)clipfrombattery
chargertoPOSITIVE(POS,P,+)ungroundedpostofbattery.ConnectNEGATIVE
(BLACK) clip to vehicle chassis or engine block away from battery. Do not connect
cliptocarburetor,fuellines,orsheet-metalbodyparts.Connecttoaheavygage
metal part of the frame or engine block.
Charger connection.
Connectpositivechargerclip(red)topositivebatteryterminal.
Connectnegativechargerclip(black)toagoodmetalenginegroundawayfrom
thebattery.Donoconnectcliptofuellinesorsheet-metalbodyparts.
Connect the AC cord to the socket. The red alarm indication light will indicate
abatterywhichisconnectedtoreversepolarity.
For Positive grounded vehicle, connect NEGATIVE (BLACK) clip from battery
chargertoNEGATIVE(NEG,N,–)ungroundedpostofbattery.ConnectPOSITIVE
(RED) clip to vehicle chassis or engine block away from battery. Do not connect
cliptocarburetor,fuellines,orsheet-metalbodyparts.Connecttoaheavygage
metal part of the frame or engine block.
Charger connection.
Connect negative charger clip (black) to negative battery terminal.
Connectpositivechargerclip(red)toagoodmetalenginegroundawayfromthe
battery.Donoconnectcliptofuellinesorsheet-metalbodyparts.
Connect the AC cord to the socket. The red alarm indication light will indicate
abatterywhichisconnectedtoreversepolarity.
When disconnecting charger, turn switches to off, disconnect AC cord, remove clip
from vehicle chassis, and then remove clip from battery terminal.
See operating instructions for length of charge information.
a)
b)
c)
d)
e)
1.
2.
3.
f)
1.
2.
3.
g)
h)

6 • US
FOLLOW THESE STEPS WHEN BATTERY
IS OUTSIDE VEHICLE. A SPARK NEAR
BATTERYMAYCAUSEBATTERY
EXPLOSION. TO REDUCE RISK OF
ASPARKNEARBATTERY:
Check polarity of battery terminals. POSITIVE (POS, P, +) battery post usually has
alargerdiameterthanNEGATIVE(NEG,N,-)post.
Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to
NEGATIVE (NEG, N, -) battery post.
ConnectPOSITIVE(RED)chargercliptoPOSITIVE(POS,P,+)batteryofpost.
Positionyourselfandfreeendofcableasfarawayfrombatteryaspossible–then
connectNEGATIVE(BLACK)chargercliptofreeendofcable.
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When disconnecting charger, always do so in reverse sequence of connecting
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When disconnecting charger, disconnect in reverse sequence from connecting
procedure. See operating instructions for charge information.
A marine (boat) battery must be removed and charged on shore. To charge it on
board requires equipment specially designed for marine use.
The battery charger must be connected to the battery according to
the instructions above.
IMPORTANT SAFETY INFORMATION!
The MULTI US 7002 cannot be used to restore a fully worn out battery.
If the MULTI US 7002 does not switch to maintenance charge after three days (green light
illuminated), there is a fault. Possible causes:
The battery is probably worn out and should be replaced.
SomelargeantimonybatteriesmaybehavedifferentandcanallowtheMULTIUS7002
to charge the battery for too long, which can lead to overcharging. See caution!
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the battery, the charging process takes longer and this can also overcharge the battery.
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ing process takes a particularly long time. A worn out battery cannot be fully charged.
Therefore you should always check whether the charger has been switched to mainte-
nance charge before you leave it turned on or unobserved for any length of time.
17.
a)
b)
c)
d)
e)
f)
g)
h)
•
•
•
•

US • 7
Caution: If the MULTI US 7002 does not switch to maintenance charge mode after three
days, manually switch it to pulse maintenance mode.
Note: A battery that hasn’t changed to maintenance charge after three days is most likely
wornoutandneedstobereplaced.Allotherbatteriescanbemaintainedforaverylong
time.
BATTERY TYPES AND SETTINGS
MULTIUS7002caneasilybesetfordifferenttypesofbatteriesorconditions.Thefollow-
ing recommendations should, however, only be seen as guidelines. Please consult the
battery manufacturer for further instructions.
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time until the required mode is reached, the button is then released. After about 2 seconds
thechargeractivatestheselectedmode.Theselectedmodeissavedinamemoryinthe
charger and remains there even if the charger is switched off.
NORMAL
Mode 14.4V - Normal setting for wet batteries, maintenance free and for
mostGelbatteries.SomeGelbatteriespreferaslightlylowerchargingvolt-
age. Please consult the battery manufacturer when in doubt.
Mode 14.7V -Thissettingisrecommendedforabatteryattemperatures
< 41°F. It is also recommended for many AGM batteries like Optima, and
Odysseys. Consult your battery manufacturer when in doubt.
SUPPLY Mode 13.6V / Supply -Thechargerisoperatingataconstantvoltageof
13.6V. This is the maintenance mode for applications where maximum ca-
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that the Spark protection function is suppressed in this mode.
RECOND
Mode 15.7V / 1.5A / 0.5–4h -Thismodeisusedtorecoverdeepdischarged
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in the bottom, low on top). This mode will also recover some spiral cell AGM
batteries that has been deep cycled. Check with battery manufacturer when
in doubt.
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because the high voltage will cause some water loss. 16V is normally no
problem for electronics, but consult your supplier when in doubt. Life of light
bulbs will be reduced at higher voltage. Try to avoid using 12V light from the
batteryduringthisphase.Maximumeffectandminimumriskforelectronics
is achieved by charging a disconnected battery.

8 • US
CHARGING
The battery charger must be connected to the battery according to
the instructions above.
Start charging
Connectthepowercordtothepoweroutlet.
Set the proper charging mode for the battery by pushing the Mode button until the
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The lamp for Deep Discharged battery (1) will indicate if the battery voltage is low.
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Normal charging is indicated by the following lamps: Deep Discharged (1), Bulk Charge
(2), Absorption Charge (3) or Maintenance Charging (4). When the maintenance lamp
is lit, the battery is fully charged. The charge will restart if the voltage drops. The
charger can be connected for months.
SUPPLYorRECONDareindicatedwhenthelampsforthesesettingsarelit(5or6).
If the battery cables are connected incorrectly, the reverse polarity protection will
make sure that neither the charger nor the battery are damaged. In this case, the red
warning lamp (0) will be lit.
If nothing happens. If the setting lamp is lit but no other light comes on, the connection
to the battery or to the chassis may be poor, or the battery may be faulty. Start by
improving the contact between the battery and the charger.
Charging can be interrupted at any time by disconnecting the power cord from the wall
socket or by putting the charger in "Standby" mode (lamp A). Always disconnect the
powercordfromthesocketbeforeremovingthebatterycables.Whenyouinterrupt
chargingofabatterymountedinavehicle,alwaysdisconnectthebatterycablefrom
thechassisbeforeremovingtheotherbatterycable.
1.
2.
3.
4.
5.
6.
7.

US • 9
CHARGING PHASES
BulkSoft StartDesulphation Absorption Analysis PulseFloatRecond
CurrentVoltage
Mode chosen: ”NORMAL” or ”SNOWFLAKE”
MULTIUS7002isamultistagefullyautomaticcharger.LampBforchosensetting
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Desulphation (Lamp 1, blinking)
Desulphation with pulsing for sulphated batteries. Indicated by blinking lamp 1.
Start (Lamp 1)
Starting phase for charging. The starting phase continues until the battery’s terminal volt-
age has risen over a preset level. At this point, charging goes into the bulk phase. If the
terminal voltage has not reached the preset level within 8 hours, charging is suspended.
The error mode is indicated. This indicates a battery which is faulty or has too large
capacity.Ifalargebatteryischargedthathasbeenseverelydischarged,itmaybeneces-
sarytorestartthechargerafter8hours.Startisindicatedbylamp1.
Bulk (Lamp 2)
Primary charging where approximately 80% of the charging happens. The charger
deliversmaximumvoltageuntiltheterminalvoltagehasrisentothepresetlevel.Aftera
numberofhours,thechargergoesontothenextphase,evenifmaximumvoltageisnot
reached. Bulk is indicated by lamp 2.

10 • US
Absorption (Lamp 3)
Final charging, voltage is kept at the preset level. During this phase, the voltage is gradu-
ally reduced. If the maximum length of time for Absorption is exceeded, the charger
automatically continues with Analysis. Absorption is indicated by lamp 3.
Analysis (Lamp 3)
Charging is suspended for a short period and the battery voltage measured. If it falls too
quickly, the battery is probably faulty. Charging is suspended and an error is indicated
(lamp 0).
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voltage, 13.6V. Float-maintenance is indicated by lamp 4.
Maintenance charging - pulse (Lamp 4)
Thestateofchargevariesbetween95%and100%.Thebatteryreceivesapulsewhen
thevoltagesinks,keepingthebatteryingoodshapewhenitisnotbeingused.Thechar-
ger can be connected for months at a time.
If the battery is charged and/or the battery’s terminal voltage drops, the charger starts a
charge pulse until the voltage has reached the preset level, 14.4V or 14.7V. The charge
pulseistheninterruptedandthecycleisrepeatedaslongasthechargerisinpulsemain-
tenance phase. If the terminal voltage drops even lower, the charger automatically reverts
to the beginning of the charging curve. Pulse maintenance phase is indicated by lamp 4. If
possible,checkthewaterlevelinthebattery.
Chosen mode: ”SUPPLY”
MULTIUS7002hasaSupplymodesettingwhichhasaconstantvoltageof13.6Vand
current up to 7A. This mode can also be used for maintenance charging of an already
fully charged battery, called Float maintenance. This type of charging keeps the battery
at 100% charge. The constant small overcharge can also increase water loss. A battery
doesnothavetobeconnectedforthechargertodelivervoltage.Thismeansthatthe
sparkprotectionisnotactiveinthismode.Itisnotappropriatetochargeacompletely
discharged battery in Supply mode, since this will not result in a completely charged
battery.Inthismode,MULTIUS7002canalsobeusedasapowergenerationunitfor
operatingequipmentthatrequires13.6Vandamaximumof7A.Iftheselectedcurrent
exceeds7A,theoutputvoltagewilldropastheloadincreases.Thechargerhaselectronic
overload protection in this mode, which is activated if the charge is so great that the output
voltagefromthechargerfallsbelowaround9Vandthecurrentísaround7A.Intheevent
of an overload, the charger goes into error mode (lamp 0). Supply mode is indicated with
lamp D and lamp 5.

US • 11
Chosen mode: ”RECOND”
MULTIUS7002hasaRecondmodewhichisusedtoreconditionabatterythathasbeen
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analysis phase is complete, the charger begins reconditioning the battery by providing a
constantcurrentof1.5Aandamaximumvoltageof15.7V.After0.5–4hours,thebattery
is completely reconditioned and the charger goes into pulse maintenance. The battery is
ready to be used, or store it with pulse maintenance active until you are ready to use the
battery.RecondisindicatedbylampEandlamp6.Notethattherecondphasebegins
with normal charging and that the charger therefore will indicate the charging phases ac-
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INDICATORS
SUPPLY
NORMAL
SUPPLY
RECOND
RECOND
MODE
1
0
ABCDE
2
34
5
6
Indication Description
0 Error mode, the charger suspends the charging / voltage maintenance.
See further description below.
Start mode.
Bulk charging, maximum voltage.
Absorption charging, voltage limited to chosen voltage.
Pulse maintenance charging
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Recond charging
STANDBY
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1
2
3
4
5
6
A
B
C
D
E

12 • US
Error mode
The charger enters error mode before start in the following situations:
The battery is connected with poles reversed to the charger's terminals.
The terminals on the charger are short-circuited.
Error mode before start is reset by removing the error situation. The charger restarts in
thelatestselectedmode.
Thechargerenterssteadyerrormodeinthefollowingsituations:
The charger’s analysis function has interrupted charging.
ThechargerisoverloadedinSupplymode.
The charger has been in start mode longer than maximum time.
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restarts in the latest selected mode.
BULK CHARGING TIME
Battery size (Ah) Time to ~80% charge (h)
14 2
50 6–7
90 11–13
150 20–22
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US • 13
TECHNICAL DATA
Model 1018
VoltageAC 100–115VAC,50–60Hz.Outputpowerisreducedat
lower input voltage.
Current 2.0A rms
Back Current Drain* < 3mA
Charging Voltage Nominal: 12V or 15.7V
Ripple** Max150mVrms,max0.3A
Charging Current 7A max
Battery cable fuse 15A
Ambient Temperature -4°F to +122°F. Automatic reduction of power at increased
ambient temperature.
Cooling Natural convection. Do not cover the charger.
Charge cycle MULTI US 7002 is a multistage fully automatic charger.
Type of batteries All types of lead-acid batteries (Wet, Maintenance Free, AGM
and most GEL).
Battery Capacity 14–150Ah
Dimensions 81/2x 31/2x1
7/8inches(LxWxH)
Insulation Raintight.
Weight 1.7 lbs
*) Back Current Drain is what the charger uses to drain the battery if the power cord is
disconnected.ThereversecurrentoftheMULTIUS7002isverylowandcorrespondsto
1Ah per month.
**) The ripple wave describes how many disturbances are exhibited by current and volt-
age. A rippled voltage can cause damage to other equipment connected to the battery.
The MULTI US 7002 supplies voltage and current with very low voltage rippling. This
increasesthelifeofthebatteryandensuresthatequipmentconnectedtoitwillnotbe
damaged.
Recommended Minimum AWG Size for AC Extension cords
Length of cord feet (m) AWG Size of cord
25 (7.6) 18
50 (15.2) 18
100 (30.5) 18
150 (45.6) 16

14 • US
OVERHEATING PROTECTION
The MULTI US 7002 is equipped with overheating protection. In high ambient tempera-
tures the output power is reduced. Do not cover the charger.
BATTERY CABLES
MULTIUS7002isequippedwithasetofbatterycableswithbatteryterminalclipsand
onesetofbatterycableswitheyeletterminals.Donotshortenthebatterycables.
Connecting the provided cables with eyelet terminals
Makesurethatthecableisnotpinchedorincontactwithwarmsurfacesorsharpedges.
Whenthecableismountedonthebattery,itshouldnotbeconnectedtothecharger.
Connect the eyelet terminals to the battery's poles - the red cable to the positive pole and
theblackcabletothenegativepole.Afterthis,thequickconnectorcanbeconnected.
MAINTENANCE
The MULTI US 7002 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
CTEKPowerInc,2374EdisonBlvd,Twinsburg,OH44087-2376,USAissuesthislimited
warranty to the original purchaser of this product. This limited warranty is not transferable.
CTEK Power Inc warrants this unit for 5 years from the date of purchase against defect
workmanship or material. It is the obligation of the purchaser to forward the unit together
withproofofpurchasetothemanufactureroritsrepresentativewithtransportationcost
prepaid. This warranty is void if the unit is abused, handled carelessly or repaired by any-
one other than CTEK Power Inc or its authorized representative. CTEK Power Inc makes
no warranty other than this limited warranty and expressly excludes any implied warranty
including any warranty for consequential damages. This is the only expressed limited
warranty and CTEK Power Inc neither assumes nor authorizes anyone to assume or make
any other obligation towards the product other than this limited warranty.
CTEK Power Inc.
2374 Edison Blvd
Twinsburg,OH44087-2376
USA
Fax:[phone]
www.ctek.com