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CTEK MUS 4.3 Battery Charger - 386-290


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Estimated Qty on Hand: 5
Pricing: $129.99


The MUS 4.3 is a powerful and full featured battery charger and maintainer that offers a broad range of battery charging capabilities. The MUS 4.3 addresses a wide range of battery charging problems and is the ideal charger for the user with multiple vehicle types and higher demand battery charging and maintenance requirements. The MUS 4.3 tests whether the battery can retain a charge and offers a patented automatic desulphation phase and a specific program for reconditioning, reviving and restoring deeply discharged and stratified wet batteries.


  • Three easy to use programs to test battery voltage, starting power and alternator performance to provide a complete picture of battery and vehicle charging system health.
  • Charges batteries up to 110Ah. Maintains larger batteries up to 160Ah.
  • Unique reconditioning mode.
  • AGM charge capability.
  • 8-step charging program.


  • Voltage: 14.4/14.7/15.8V
  • Max Charging current: 4.3A
  • Charger type: 8 step, fully automatic charging cycle.
  • Battery type: 12V Lead-Acid and Gel Cell batteries
  • Battery capacity: 1.2-110Ah, maintenance charging up to 160Ah
  • Insulation: IP65 (splash and dust proof)
  • Warranty: 5 Year Limited Manufacturer Warranty

California Residents: Prop 65 Warning

WARNING: Cancer and Reproductive Harm

Note: This item replaces part number MS-386-290.


  • 386-290
  • 386-290
  • XKs Unlimited
  • New

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