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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.

Summary of Contents for MULTI US 3300

Page 1: ...Switch Mode BATTERY CHARGER For lead acid batteries 2 90 Ah MULTI US 3300 User s Manual and a guide to professional battery charging For Starter Deep Cycle batteries US...

Page 2: ...y 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...

Page 3: ...acts skin or clothing wash immediately with soap and water If acid enters eye immediately ood eye with running cold water for at least 10 minutes and get medical attention immediately e NEVER smoke or...

Page 4: ...ne 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 batte...

Page 5: ...nnect 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 b...

Page 6: ...eck whether the charger has been switched to maintenance charge before you leave it turned on or unobserved for any length of time Caution If the MULTI US 3300 does not switch to maintenance charge mo...

Page 7: ...arge mode to be used for charging your battery in the section on SETTINGS 2 Once you have established that the battery cable has been correctly connected you can start the charging process To do so in...

Page 8: ...ld however only be seen as guidelines Please consult the battery manufacturer for further instructions Settings are made by pressing the MODE button and stepping forward one press at a time until the...

Page 9: ...s methods are used depending on the time of the measurement see table When Reading Yes No Before the start or after changing the charging mode Voltage higher than 12 9 V Green indicator lit until the...

Page 10: ...state of charge The time for the Absorption should be added Battery size Ah Mode Time h 2 2 3 8 8 10 14 3 4 50 12 14 90 23 26 INDICATORS Incorrect polarity Charging process Charging completed Pulse m...

Page 11: ...of batteries All types of lead acid batteries Battery Capacity 2 90 Ah Dimensions 6 1 2 x 2 3 8 x 1 1 2 inches L x W x H Enclosure Splashproof Rainproof Weight 1 1 lbs The back current drain is the cu...

Page 12: ...anty to the original purchaser of this product This limited warranty is not trans ferable CTEK SWEDEN AB warrants this unit for two years from the date of purchase against defect workmanship or materi...

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