- Includes two interchangeable connection leads, one with clamps, and one with eyelet terminals; 5 year limited warranty
- Four step, automatic switch charging and three separate charge modes that together allow for easy, convenient, no-watch battery charging
- Charges 12-volt lead-acid batteries (Wet, MF, Gel, AGM and Ca) from 12Ah to 75Ah (charging), 12-120Ah (maintenance)
- Maintenance pulse charging increases battery life and gives superb performance, and patented desulphation functionality allows for the recovery of slightly sulphated batteries
- Compact design with mounting holes allows for permanent assembly, and the charger to be connected for months, makes this charger ideal for motorcycles, cars, lawn mowers, jet skis and any other vehicle with batteries up to 120Ah
Product Description
The CTEK MULTI US 3300 is the battery charger that all households should own. It is ideal for all your vehicles in the garage with 12 Volt batteries from 1.2-120Ah. It has a special cold mode which is perfect for charging on cold winter days, and can also handle the demanding Optima battery range. The MULTI US 3300 has a 5 year warranty, delivers 0.8/3.6-Ampere and is IP65 classified (Splash and dust proof). All CTEK battery chargers are electronic proof, non-sparki… More >>
CTEK Multi US 3300 12V Smart Battery Charger
Tags: 12 volt batteries, 3300, acid batteries, automatic switch, Battery, charge modes, Charger, cold winter days, CTEK, dust proof, jet skis, Multi, optima battery, Smart, smart battery charger, watch battery
#1 by S. Randell on March 24, 2010 - 1:47 am
My first charger arrived and did not work. I returned the charger (at Amazon’s expense) and the second charger was sent “next day” via UPS. The CTEK 3300 is an extremely easy charger to use. It is small in size which is a plus. It is also less expense than the more well known charger brand. I gave 4 stars instead of 5 simply because the first charger did not work.
Rating: 4 / 5
#2 by Amazing Awaits on March 24, 2010 - 2:17 am
I primarily use this charger to keep the battery on my motorcycle charged up when sitting dormant for weeks at a time. The unit comes with two sets of leads that can plug into the unit. The leads consist of traditional alligator clips and eyelets. I have the eyelet leads permanently bolted to my battery with the plug accessible without having to remove the battery. The unit also comes with a nice storage pouch with a nice sleeve to keep the instructions in. The product is very streamline and easy to use. The price is very reasonable compared to other products (which are unusually big and bulky). I’m extremely satisfied with this product and highly recommend it.
Rating: 5 / 5
#3 by Toolman on March 24, 2010 - 2:47 am
+ Small, simple to use, Multi-stage charger. Not bad for the price.
- No measurable improvement in capacity of my slightly sulfated battery. Admittedly “slightly” is an imprecise word.
Strike ONE, 2 of 14 reviewers received DOA (Dead On Arrival) units.
Strike TWO, Designed in Sweden as touted, but made in (low reliability) China.
Strike THREE, CTEK will NOT repair out of warranty units. After warranty expires, NO repair is available.
Strike FOUR, Not “latest technology” as claimed (No battery temperature compensation sensor) only a normal or low temperature user selectable choice.
Rating: 3 / 5
#4 by Romeo A. Zamberletti on March 24, 2010 - 5:36 am
Just received in mail.. got to work almost immediately installing the eyelet terminals on the battery.
Plugged charger into electric cord and only the yellow light lit up.. put volt meter on output from charger 0 volts.
Called CTEK and explained all items. advice was to return to where I purchased. Their assesment was that it was
defective. I already have my return label and asked for a replacement and email received that the replacement was in process.
Great customer service.
Rating: 4 / 5
#5 by S. Hinkamp on March 24, 2010 - 6:37 am
This product performs with no fuss and it appears to cycle (as it claims) to recharge a battery while reducing sulfation in an older battery. I have two deep cyle/starting batteries. One is older and one is nearly new. The charger went through many, many cycles to charge the old battery. The new battery was charged within hours. Since then I just switch the connections every few days to keep both batteries ready to go. The instructions are well written and the charger and cables seem to be of high quality. I must say I have only had this product for a few months so I can’t say much about how long it will last, but it appears to be a high quality product.
Rating: 5 / 5