Switch Mode
BATTERY CHARGER
For lead-acid batteries 14-150 Ah
MULTI US 7000
User’s Manual and a guide
to professional battery charging
For Starter/Deep Cycle batteries
US
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INTRODUCTION
The MULTI US 7000 is a primary switch mode battery charger with pulse maintenance.
The MULTI US 7000 is designed to offer maximum life for the battery. MULTI US 7000 is
a member of a family of professional chargers from CTEK SWEDEN AB. It represents the
state-of-the-art of today’s technology for battery charging. Please read these operating
instructions carefully before operating the MULTI US 7000.
IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS – This manual contains
important safety and operating instructions for the MULTI US 7000 battery charger.
2. When charging, batteries can emit explosive gases, therefore it is essential
to prevent flames and sparks. The charger is designed for charging lead-acid
batteries from 14 to 150 Ah. Do not use for any other purpose.
3. Always provide good ventilation when charging.
4. Use of an attachment not recommended or sold by CTEK may result in a risk of
fire, electric shock or serious injury to persons.
5. To reduce risk of damage to electric plug and cord, pull by the plug rather than by
the cord when disconnecting charger.
6. An extension cord should not be used unless absolutely necessary. Use of an
improper extension cord could result in a risk of fire and electric shock. If extension
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 ac ampere rating as specified in “technical data”
7. Do not operate charger with a damaged cord or plug - return the charger to the
place where purchased.
8. Never operate the charger if it has received a sharp blow, been dropped or
otherwise damaged in any way; take it to a qualified serviceman.
9. Do not disassemble the charger; take it to a qualified serviceman when service or
repair is required. Incorrect reassembly may result in a risk of electrical shock or
fire.
10. To reduce risk of electric shock, unplug charger from AC outlet before attempting
any maintenance or cleaning. Turning off controls will not reduce the risk.
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11. WARNING - RISK OF EXPLOSIVE GASES
a) BATTERIES GENERATE EXPLOSIVE GASES
DURING NORMAL BATTERY OPERATION.
FOR THIS REASON, IT IS OF THE UTMOST
IMPORTANCE THAT EACH TIME BEFORE
USING YOUR CHARGER, YOU READ THIS
MANUAL AND FOLLOW THE INSTRUCTIONS
CAREFULLY.
b) Follow these instructions and those published by the battery manufacturer and the
manufacturer of any equipment you intend to use in vicinity of battery.
12. PERSONAL PRECAUTIONS
a) Some one should be within voice range or close enough to come to your aid when
you work near a lead-acid battery.
b) Have plenty of fresh water and soap nearby in case battery acid contacts skin,
clothing or eyes.
c) Always wear complete eye protection and clothing protection. Avoid touching eyes
while working near battery.
d) If battery acid contacts skin or clothing, wash immediately with soap and water.
If acid enters eye, immediately flood eye with running cold water for at least 10
minutes and get medical attention immediately.
e) NEVER smoke or allow a spark or flame in vicinity of battery or engine.
f) 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.
g) 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-circuit
current high enough to weld a ring or the like to metal, causing a severe burn.
h) Use charger for charging a LEAD-ACID battery only. Do not use battery charger
for dry-cell batteries that are commonly used with home appliances. These
batteries may burst and cause injury to persons and damage to property.
i) Never charge a frozen battery.
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13. PREPARING TO CHARGE
a) If necessary to remove battery from vehicle to charge, always remove grounded
terminal from battery first. Make sure all accessories in the vehicle are off, so as
not to cause an arc.
b) Be sure area around battery is well ventilated while battery is being charged. Gas
can be forcefully blown away by fanning the area with a piece of cardboard or
other non-metallic material.
c) Clean battery terminals. Be careful to keep corrosion from coming in contact with
eyes.
d) Add distilled water in each cell until battery acid reaches level specified by battery
manufacturer. This helps to purge excessive gas from cells. Do not overfill. For a
battery without cell caps, carefully follow manufacturer’s recharging instruction.
e) Study battery manufacturer’s specific precautions such as removing or not
removing cell caps while charging.
f) Determine voltage of battery by referring to car owner’s manual and make sure
that the output voltage selector switch is set at correct voltage.
14. CHARGER LOCATION
a) Locate charger as far away from the battery as battery charger cables permit.
b) Never place charger directly above battery being charged; gases from battery will
corrode and damage charger.
c) Never allow battery acid to drip on charger.
d) Do not operate charger in a closed-in area or restrict ventilation in any way.
e) Do not set a battery on top of charger.
15. DC CONNECTION PRECAUTIONS
a) Connect and disconnect dc output clips only after setting any charger switches to
off position and removing ac cord from electric outlet. Never allow clips to touch
each other.
b) Attach clips to battery and chassis as indicated in 16(e), 16(f), 17(b) and 17(d).
16. FOLLOW THESE STEPS WHEN BATTERY
IS INSTALLED IN VEHICLE. A SPARK
NEAR BATTERY MAY CAUSE BATTERY
EXPLOSION. TO REDUCE RISK OF A SPARK
NEAR BATTERY:
a) Position ac and dc cord in a safe position to reduce risk of damage by hood, door
or moving engine part.
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b) Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to
persons.
c) Check polarity of battery terminals. POSITIVE (POS, P, +) battery post usually has
larger diameter than NEGATIVE (NEG, N, -) post.
d) Determine which post of battery is grounded (connected) to the chassis. If negative
post is grounded to the chassis (as in most vehicles) see (e). If positive post is
grounded to the chassis, see (f).
e) Negative-grounded vehicle.
Charger connection.
1. Connect positive charger clip (red) to positive battery terminal.
2. Connect negative charger clip (black) to a good metal engine ground away
from the battery. Do no connect clip to fuel lines or sheet-metal body parts.
3. Connect the AC cord to the socket. The red alarm indication light will indicate a
battery which is connected to reverse polarity.
f) Positive grounded vehicle
Charger connection.
1. Connect negative charger clip (black) to negative battery terminal.
2. Connect positive charger clip (red) to a good metal engine ground away from
the battery. Do no connect clip to fuel lines or sheet-metal body parts.
3. Connect the AC cord to the socket. The red alarm indication light will indicate
a battery which is connected to reverse polarity.
g) When disconnecting charger, disconnect AC cord, remove clip from vehicle
chassis, and then remove clip from battery terminal.
h) See operating instructions for charge information.
17. FOLLOW THESE STEPS WHEN BATTERY
IS OUTSIDE VEHICLE. A SPARK NEAR
BATTERY MAY CAUSE BATTERY
EXPLOSION. TO REDUCE RISK OF A SPARK
NEAR BATTERY:
a) Check polarity of battery terminals. POSITIVE (POS, P, +) battery post usually has
larger diameter than NEGATIVE (NEG, N, -) post.
b) Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) battery post.
c) Connect NEGATIVE (Black) charger clip to NEGATIVE (NEG,N,-) battery post.
The red alarm indication light will indicate a battery, which is connected to reverse
polarity.
d) Connect charger’s AC cord to socket.
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