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CTEK CS FREE 4-in-1 Adaptive Booster, Battery Charger & Maintainer — 12V, Boosts, Charges, Maintains Batteries, USB-C & USB-A Outputs, Model# CTK40-462

Item# 7168631
CTEK CS FREE 4-in-1 Adaptive Booster, Battery Charger & Maintainer — 12V, Boosts, Charges, Maintains Batteries, USB-C & USB-A Outputs, Model# CTK40-462

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CTEK CS FREE 4-in-1 Adaptive Booster, Battery Charger & Maintainer — 12V, Boosts, Charges, Maintains Batteries, USB-C & USB-A Outputs, Model# CTK40-462

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$199.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • Adaptive Booster technology safely powers up flat batteries—no jump cables needed
  • Charges and maintains all 12V lead-acid and lithium (LiFePO4) batteries
  • Compatible with solar panels, service batteries, USB-C power adapter, and vehicle cigarette lighter
  • Automatic operation—no mode selection required, user-friendly display with countdown timer
  • Doubles as a portable power bank with USB-C and USB-A outputs for charging mobile devices

  • Prop 65 Warning: See Details

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  • Description

  • Key Specs

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Product Summary

The CTEK CS FREE 4in.-1 (CTK40-462) is the ultimate all-in-one solution designed to power up flat batteries, charge, and maintain vehicle batteries wherever you go — without the need for traditional jump cables. Featuring innovative Adaptive Boost technology, CS FREE® safely revives dead batteries within minutes, protecting your vehicle’s sensitive electronics from damage. Perfect for off-grid adventurers, CS FREE® can charge and maintain any 12V lead-acid or lithium (LiFePO4) battery using power from solar panels, separate service batteries, or the included USB-C power adapter. Beyond battery care, CS FREE® doubles as a portable power bank with USB-C and USB-A outputs to charge smartphones, tablets, laptops, and other devices—keeping you connected on the road or off the grid. Designed for simplicity, the CS FREE® requires no mode selection — simply connect and it automatically adapts to your battery’s needs. The clear display features a countdown function indicating when your vehicle can safely start and the time remaining until full battery charge. Housed in a durable, modern casing, this versatile device is backed by a 2-year warranty for peace of mind.

What's Included

    (1) (1) CTEK CS FREE 4-IN-1 Adaptive Booster, Battery Charger & Maintainer, (1) USB-C Power Adapter & Cable, (1) Set of alligator clamps and eyelet connectors, (1) User manual

Features + Benefits

  • Adaptive Booster technology safely powers up flat batteries—no jump cables needed
  • Charges and maintains all 12V lead-acid and lithium (LiFePO4) batteries
  • Compatible with solar panels, service batteries, USB-C power adapter, and vehicle cigarette lighter
  • Automatic operation—no mode selection required, user-friendly display with countdown timer
  • Doubles as a portable power bank with USB-C and USB-A outputs for charging mobile devices
  • Clear countdown display shows when vehicle can start and remaining charge time
  • Robust, durable housing designed for all-weather use
  • Suitable for cars, trucks, RVs, motorcycles, and powersport vehicles
  • Backed by a 2-year manufacturer warranty

Key Specs

AttributeSpecification

item#

7168631

Brand

CTEK Power, Inc.

Manufacturer's Warranty

No limited warranty

Ship Weight

3.0 LB

Volts

12
AttributeSpecification

Amps

5

Product Type

Charger

Product Weight

3.0000 lb

Dimensions L x W x H (in.)

9.7 x 3.9 x 3.1 in

Reviews

Questions & Answers

Questions

Warranty

Manufacturer's Warranty

No limited warranty

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