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CTEK 12v Multi US 4.3 Amp Smart Charger - CTEK-56-864

CTEK 12v Multi US 4.3 Amp Smart Charger - CTEK-56-864
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Was: $88.99
Sale Price: $86.99 No Tax
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This Qualifies for FLAT RATE Shipping of $7.50 per order*

CTEK 12v Multi US 4.3 Amp Smart Charger - CTEK-56-864
Product Description

The MUS 4.3 (Part No. 56-864) is a charger that offers state-of-the-art technology that was previously only found in CTEK’s professional product range. The charger can solve a broad range of battery-related problems and is the perfect charger for those with high demands. The MUS 4.3 offers features such as battery diagnosis that shows if a battery can receive and retain a charge, a special reconditioning function that restores stratified and deeply discharged batteries, unique maintenance charging, a mode for optimized charging during cold winter days and the charging of demanding AGM batteries (i.e. Optima). The unique display allows the user to follow the entire charging process.

The MUS 4.3 is a fully automatic 8-step charger that delivers selectable 0.8 A or 4.3 A to 12 V batteries from 1.2–110 Ah and is suitable for maintenance charging up to 160 Ah. The charger is splash and dust proof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. It is delivered with a 5-year warranty.

  • Fully automatic charging and maintenance in 8 steps maximizes battery life and performance
  • Numerous accessories simplifies using the same charger for multiple batteries
  • One charger for the car, motorcycle, lawn mower, snowmobile, sump pump and tractor
  • Water-resistant so that the solution could be taken to the problem even if it rains or snows
  • Patented maintenance charge for a unique combination of maximized life and performance
  • Recondition of deep discharged batteries
  • Patented desulphation that extends the battery life
  • No sparks, short-circuit proof and reverse-polarity protected for untroubled usage
  • Automatic detection of end-of-life batteries that eliminates surprises
  • 5 Year Warranty
* Flat Rate shipping is for the lower 48 states only.

Optional Accessories

CTEK Indicator Eyelet - CTEK 56-382
Comfort Indicator easily shows the status on the battery and makes sure that the battery can always get the care it needs.

CTEK Comfort Indicator Cig Plug - CTEK 56-870
The Battery is charged through the vehicle's 12 volt socket. The connector has our intelligent comfort indicator (Part No. 56-870) which shows how much power is left in the battery.

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Technical Specifications
Length 6.5
Width 2.5
Height 1.5
Weight 1.4
Shipping Weight (lb.) 3
Charging Voltage 14.4 / 14.7 / 15.8 V
Minimum Battery Voltage 2.0 V
Maximum Charging Current Max 4.3 A
AC Input 110–120VAC
AC Frequency 50–60Hz
Charger Type 8-Step Fully automatic charging cycle
Battery Type 12V lead-acid batteries
Battery Capacity 1.2 - 110 Ah, up to 160 Ah for maintenance
Ambient temperature -4° F to +122° F (-20˚ C to +50˚ C), output power is reduced automatically at high temperatures
Insulation IP65(splash and dust proof)
Model: CTEK 56-864
Manufacturer: CTEK
Manufacturer Part #: CTEK 56-864
Made In: Asia
Instruction Manual
Icon Pdf Download Manual

Order Line: 1-800-362-5397
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