Description
CTEK MUS 4.3 TEST&CHARGE – 12V Charger with Battery, Starter & Alternator Testing
The CTEK MUS 4.3 TEST&CHARGE combines a high-performance 12V battery charger with advanced battery, starter, and alternator testing functions, providing complete care for your vehicle’s electrical system. Designed for batteries ranging from 1.2Ah to 110Ah (maintenance up to 160Ah), this microprocessor-controlled charger solves common battery issues, restores deeply discharged batteries, and ensures reliable performance in any condition.
The charger features patented desulphation, reconditioning, and Float/Pulse maintenance programs, keeping your batteries in peak condition even during long-term storage. Specialized modes such as Recond and Snowflake provide optimal charging in both normal and cold-weather environments, operating at 0.8A or 4.3A for maximum flexibility.
With the integrated testing functions, you can quickly assess your battery voltage, starter power, and alternator performance, providing a full overview of your vehicle’s electrical system health. The user-friendly LED display clearly communicates charging progress and testing results.
The MUS 4.3 TEST&CHARGE is designed for safety and durability: non-sparking, short-circuit and reverse-polarity protected, with an IP65-rated splash- and dustproof housing. Backed by a 5-year warranty, it’s the ultimate all-in-one solution for battery care and diagnostics.
Key Features
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All-in-One Charging and Testing: Battery, starter, and alternator diagnostics in a single unit.
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Automatic 8-Step Charging: Charges 12V lead-acid batteries (1.2–110Ah) safely and efficiently.
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Battery Maintenance Programs: Desulphation, AGM, Cold Weather, Reconditioning, and Float/Pulse maintenance.
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Snowflake Mode: Optimized charging for extreme cold conditions.
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Safe Operation: Non-sparking, reverse-polarity and short-circuit protected.
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User-Friendly LED Display: Tracks both charging and diagnostic progress.
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IP65-Rated Housing: Splash- and dustproof for reliable outdoor and garage use.
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5-Year Warranty: Long-term protection and peace of mind.
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: 14.4/14.7/15.8 V, max 4.3 A
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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: –4°F to +122°F (–20°C to +50°C)
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Ripple: <4%
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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, ATVs, and snowmobiles
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Seasonal or stored vehicles
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Battery diagnostics and maintenance for home and garage use
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Preventative care and cold-weather readiness
Maintain, restore, and monitor your battery and vehicle charging system with the CTEK MUS 4.3 TEST&CHARGE — the complete 12V solution.
