CTEK MUS 4.3 Polar Battery Charger (56-958)
The MUS 4.3 POLAR (Part No. 56-958) has been specially developed to offer excellent all-round charging with special cold weather performance and adapted AC and DC cables to handle severe cold down to -22°F (-30°C).
The CTEK MUS 4.3 POLAR is an advanced microprocessor controlled battery charger providing unrivaled performance on batteries from 1.2Ah up to 110Ah. Features include diagnosis of battery condition to establish if it can receive and retain charge, patented automatic desulphation program and a special reconditioning function that will revive and restore deeply discharged and stratified batteries. ‘Snowflake’ mode ensures ideal charging performance even in the most extreme cold conditions. Patented Float/Pulse maintenance makes the MUS 4.3 POLAR ideal for long-term maintenance. The entire process of battery testing, charging and maintenance is easily followed on the clear LED display.
The CTEK MUS 4.3 POLAR is a fully automatic ‘connect and forget’ 12V charger with 8 charging steps and offers selectable 0.8A, and 4.3A programs. The RECOND and SNOWFLAKE modes operate individually or together in both 0.8A and 4.3A programs providing great flexibility for the user. Wide charging range on all lead-acid battery types from 1.2Ah up to 110Ah with additional maintenance capability to 160Ah. Splash proof and dust proof (IP65).
CTEK MUS 4.3 POLAR (56-958) Specifications:
- For Use With: 12V Lead-Acid Batteries (Wet/AGM/MF/GEL)
- Type of Charger: Fully Automatic - 8 Step Charging Cycle
- Charging Currency: 4.3 Amps Max
- Warranty: 5 Years
The MUS 4.3 POLAR is easy and safe to use, protects vehicle electronics, spark-free, reverse polarity protected and short circuit proof. The MUS 4.3 POLAR (56-958) features a 5 year warranty.
Features of the CTEK MUS 4.3 Polar
- Complete Battery Care - Unique and patented system to recover, charge and maintain all lead–acid battery types to maximize performance and extend life.
- Safe and easy to use - User safety through spark free operation and reverse polarity protection. Vehicle electrical safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect battery from the vehicle when charging.
- Connect and Forget - Simple plug and play operation. Select the program and mode and leave the charger to do the rest.
- Unique 8 step charging - The patented 8 step program tests battery condition and revives, charges and maintains to ensure maximum battery life and performance. RECOND recovers deep discharged and stratified batteries. FLOAT/PULSE maintenance ensures ideal battery care during periods of inactivity.
- Charges down to -22°F (-30°C) - Specially developed for use in extreme cold conditions and featuring AC and DC cables adapted for low temperature use.
- Extends battery life - The unique features of CTEK chargers combine to maximize performance and extend battery life.
This CTEK model will work for the following brands unless a lithium battery has been installed:
- Acura
- Audi
- BMW
- Bentley
- Buick
- Cadillac
- Chrysler
- Dodge
- Ford
- GMC
- Genesis
- Honda
- Hyundai
- Infiniti
- Jaguar
- Jeep
- Land Rover
- Lexus
- Lincoln
- Maserati
- Mazda
- Mercedes-Benz
- Nissan
- Porsche
- Ram
- Rolls-Royce
- Saab
- Subaru
- Toyota
- Volkswagen
- Volvo
Browse All Available CTEK Charger Accessories.
CTEK MUS 4.3 Polar Charger Specifications:
For Use With: 12V Lead-Acid Batteries (Wet/AGM)
Type of Charger: Fully Automatic - 8 Step Charging Cycle
Charging Currency: 4.3 Amps Max
Warranty: 5 Years
The CTEK MUS 4.3 Polar (56-958) charger unit is designed for use in cold weather applications below the freezing point. The 56-958 CTEK MUS 4.3 Polar charger comes with a standard 5 year warranty.
| Spec | Data |
| Part # | 56-958 |
| Input Voltage | 100-115 VAC |
| Charging Voltage | 14.4 / 14.7 / 15.8 V |
| Charging Current | Max 5 Amps |
| Type of Charger | 8 Step, Fully Auto Charging Cycle, 3 Voltage Test Programs |
| For Use With | 12V Lead-Acid Batteries (Wet, MF, AGM, GEL and Ca) |
| Battery Capacity | 1.2-110Ah, up to 160 Ah for Maintenance |
| Charging Currency | 0.8/5 Amps Max |
| Warranty | 5 Years |
