Description
CTEK MUS 4.3 POLAR – Advanced 12V Charger for Extreme Cold Weather
The CTEK MUS 4.3 POLAR is a high-performance 12V battery charger designed to deliver reliable charging and maintenance even in the harshest cold conditions, down to -22°F (-30°C). Engineered with advanced microprocessor-controlled technology, this charger ensures your batteries remain in peak condition throughout winter, extreme climates, or long-term storage.
Ideal for batteries from 1.2Ah up to 110Ah, the MUS 4.3 POLAR features a diagnostic program that evaluates your battery’s condition and determines if it can safely receive and retain a charge. A patented automatic desulphation program and reconditioning mode restore deeply discharged and stratified batteries, maximizing battery life and performance.
For severe winter conditions, the “Snowflake” mode delivers optimal charging performance even in sub-zero temperatures. The charger’s Float/Pulse maintenance program ensures long-term battery health when left connected over time. The entire process—from testing to charging and maintenance—is clearly visible via the intuitive LED display.
Designed for safety and convenience, the MUS 4.3 POLAR is non-sparking, reverse-polarity protected, and short-circuit proof, with IP65-rated splash- and dustproof housing. Backed by a 5-year warranty, it is the perfect solution for homeowners, seasonal vehicle owners, and outdoor enthusiasts who require reliable performance in the coldest conditions.
Key Features
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Extreme Cold Performance: “Snowflake” mode for reliable charging down to –22°F (–30°C).
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Automatic 8-Step Charging: Connect and forget—charges 12V lead-acid batteries from 1.2Ah–110Ah.
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Battery Reconditioning: Restores deeply discharged and stratified batteries.
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Float/Pulse Maintenance: Ideal for long-term storage without overcharging.
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Advanced Safety Features: Non-sparking, short-circuit proof, reverse-polarity protected.
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User-Friendly LED Display: Clear status of battery testing, charging, and maintenance.
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Durable Design: IP65-rated for splash and dust protection.
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5-Year Warranty: Reliable CTEK quality and long-term support.
Technical Specifications
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Charging Category: AC Charging
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Input: 110–120 VAC, 50–60 Hz, 1.1 A
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Output: 14.4/15.0/15.8 V, 4.3 A max
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Battery Chemistry: 12V Lead-Acid (WET, MF, Ca/Ca, AGM, GEL)
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Battery Capacity: 1.2–110 Ah (charging), up to 160 Ah (maintenance)
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Back Current Drain: <1 Ah/month
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Start Voltage: 2.0 V
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Operating Temperature: –22°F to +122°F (–30°C to +50°C)
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Protection Rating: IP65 (splash & dustproof)
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Charge Current: Max 4.3 A
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Warranty: 5 years
Ideal For
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Cars, motorcycles, and ATVs in extreme cold weather
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Seasonal vehicles stored outdoors
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Homeowners and outdoor enthusiasts needing reliable winter charging
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Batteries from small motorcycles to mid-sized cars
Stay charged and ready, even in the coldest conditions, with the CTEK MUS 4.3 POLAR.
