MULTI US 3300 Battery Charger For lead-acid batteries 2–90Ah User Manual and Guide to professional charging of starter and deep cycle batteries.
INTRODUCTION The MULTI US 3300 is a primary switch mode battery charger with pulse maintenance. The MULTI US 3300 is designed to offer maximum life for the battery. MULTI US 3300 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 3300.
11. WARNING - RISK OF EXPLOSIVE GASES a) WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST IMPORTANCE THAT, YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU USE THE CHARGER. b) 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.
13. PREPARING TO CHARGE a) If necessary to remove battery from vehicle to charge, always remove grounded WHUPLQDO IURP EDWWHU\ ¿UVW 0DNH VXUH DOO DFFHVVRULHV LQ WKH YHKLFOH DUH RII VR DV not to cause an arc. b) Be sure area around battery is well ventilated while battery is being charged. c) Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes.
a) Position AC and DC cords to reduce risk of damage by hood, door or moving engine part. b) 6WD\ FOHDU RI IDQ EODGHV EHOWV SXOOH\V DQG RWKHU SDUWV WKDW FDQ FDXVH LQMXU\ WR persons. c) Check polarity of battery posts. 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).
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 a larger diameter than NEGATIVE (NEG, N, -) post. b) Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to NEGATIVE (NEG,N,–) battery post. c) Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) battery of post.
Caution: If the MULTI US 3300 does not switch to maintenance charge mode after three days, manually switch it to pulse maintenance mode. If the set has been switched to maintenance charge, then everything is in order. Note: A battery that hasn’t changed to maintenance charge after three days is most likely worn out and needs to be replaced. All other batteries can be maintained for a very long time. CHARGING Connecting the MULTI US 3300: &RQQHFWLQJ WKH HTXLSPHQW WR D EDWWHU\ ÀWWHG LQ WKH YHKLFOH 1.
Starting the charging process 1. 6HW WKH FRUUHFW FKDUJH PRGH E\ SUHVVLQJ WKH PRGH EXWWRQ
6HWWLQJV DUH PDGH E\ SUHVVLQJ WKH ´02'( EXWWRQ´ DQG VWHSSLQJ IRUZDUG RQH SUHVV DW D time until the required mode is reached, the button is then released. The selected mode is saved in a memory in the charger and remains there even if the charger is switched off. Mode 14.4V/0.8A This mode is normally used for batteries <14Ah. Mode 14.4V/3.3A Normal setting for wet batteries, maintenance free and for most Gel batteries. Some gel batteries prefer a slightly lower voltage.
Desulphation: Desulphation with pulsing for sulphated batteries. Bulk: Charging where about 80% of the energy is returned. The charger delivers an almost constant current until the battery voltage reaches the set level. Absorption: Charging up to almost 100%. The charge current tapers and the voltage is kept constant at the set level. Pulse: Maintenance charge. The charging process ranges between 95% and 100%. The battery receives a pulse if the voltage falls.
INDICATORS Incorrect polarity. Charging process Charging completed. Pulse maintenance. Standby / Power on. Charger ready to use, please select charging function. TECHNICAL DATA Voltage AC 120VAC, 60Hz. Output power is reduced at lower input voltage. A perfect charge will still be achieved. Current 1.1A rms Back Current Drain* 1.3mA Charging Voltage Nominal: 12V 14.4/14.7V Ripple** Max 50mV rms, max 0.13A. Charging Current 0.8/3.3A max Ambient Temperature - 4°F to +122°F.
**)The ripple wave describes how many disturbances are exhibited by current and voltage. A rippled voltage can cause damage to other equipment connected to the battery. The MULTI US 3300 supplies voltage and current with very low voltage rippling. This increases the life of the battery and ensures that equipment connected to it will not be damaged. Recommended Minimum AWG Size for AC Extension cords Length of cord feet (m) 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.
cludes any implied warranty including any warranty for consequential 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. CTEK SWEDEN AB Rostugnsvägen 3 SE-776 70 VIKMANSHYTTAN SWEDEN Fax: + 46 225 307 93 www.ctek.
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