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🔋 ctek mus 4.3 polar extreme climate 12v fully automatic 8-step battery charger logo

🔋 CTEK MUS 4.3 POLAR Extreme Climate 12V Fully Automatic 8-Step Battery Charger Review

6

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Very good

Revainrating 4.5 out of 5  
Rating 
4.5
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Description of 🔋 CTEK MUS 4.3 POLAR Extreme Climate 12V Fully Automatic 8-Step Battery Charger

Specially developed for use in extreme cold conditions featuring AC and DC cables adapted to handle severe cold temperatures. Fully automatic 8 step patented program tests battery condition and revives, charges and maintains to ensure maximum battery life and performance. No sparks, short-circuit proof and reverse polarity protected makes it safe for all the vehicles electronics and easy to use. Water and dust resistant means it is safe to use in all climate situations. Numerous accessories simplifies using the same charger for multiple battery applications. Input voltage 110-120 VAC. Minimum battery voltage required: 2V.

Reviews

Global ratings 6
  • 5
    4
  • 4
    1
  • 3
    1
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Highly Recommended: Performance parts and accessories

This is my second CTEK. My first non-polar MUS 4.3. Both work great. Easy to use. I really like the loading progress indicators. The first one I use on my BMW K1600 GTL motorcycle. I bought this to keep my Porsche Macan charged during this pandemic as I don't drive much (joke a gallon lasts 3 weeks!). I bought an accessory kit for the first one that has a cigarette lighter. Plug adapter - ideal for car. There is no need to use alligator clips on the battery. Just turn on the car ignition, plug…

Pros
  • High marks for support and durability from testers
Cons
  • I'll add later

Revainrating 5 out of 5

Expensive but great safe charger

Best charger I've ever had and I've had quite a few. I feel like I can have confidence that my battery will not be overcharged. With my Fluke meter, the voltage is as advertised. The only annoying thing is that all the cables remain flexible in the cold, except for the pigtails that are attached to the battery. For the price, battery pigtails require them to use the same pigtail they use for everything else. You must be careful where you place the device during use as it can get very hot, do…

Pros
  • Few competitors
Cons
  • Good but not great

Revainrating 4 out of 5

Understand the limits well for battery accessories

I bought this charger because I have a truck that doesn't get that much use and after 2 months idling in the cold the battery was almost dead . One evening I plugged in the charger and by morning the battery was fully charged. On the other hand, I accidentally left the interior light on in my car and when I plugged in the charger, after several attempts, there was only an error. As it turns out, the battery may be too weak to run the charger. This battery was new in August 2019. I called Triple

Pros
  • Free for educational purposes
Cons
  • So far so good

Revainrating 5 out of 5

"COMFORT CONNECT " --- Possible clip limit for some

Charger works well. I particularly like the option to choose whether to use the "RECOND" charge program throughout the charge cycle. CTEK POLAR has worked well charging my AGM or Lead Acid batteries. However, please note that the jaws of the supplied COMFORT CONNECT clamp may not open wide enough for your application. This was when I was trying to connect to the positive terminal on my 2018 Nissan Frontier. close, but no cigar. Instead, I decided to "fix" the included COMFORT CONNECT tabs to…

Pros
  • Best-in-Niche
Cons
  • New competitors have emerged

Revainrating 3 out of 5

Hope it lasts longer than ctek 3300

I bought this charger at the start of the pandemic in March to use it to prevent the daily driver's car battery from draining. I've been using a ctek 3300 on a Miata in storage since December 2018 and expected this to work as well. Fast forward to December 2020. The Ctek Polar never came out of the box, but the Ctek 3300 found a bug. A constant battery indicator started blinking, indicating either a bad connection or that the battery was getting low and couldn't hold a charge. The connection…

Pros
  • handy item
Cons
  • not all fit

Revainrating 5 out of 5

RV (Duel Battery) Service Specialist

I live in an area with an average temperature of 20°F. in winter and drops to -10F intermittently for 2-3 days. This holder/charger is used for dueling batteries for wagons (not for engines) for my application. I have 1 charger for both batteries and connect + to 1 battery and - to the second battery. This is an EXCELLENT UNIT. I bought a CTEC extension cord and installed my CTECH in a convenient location. I ran an extension cable to the battery using the O terminals on the battery's screw…

Pros
  • Easy to read control panel
Cons
  • -