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CTEK CS FREE Portable Charger w/ Adaptive Boost

THE WORLD’S FIRST PORTABLE CHARGER WITH ADAPTIVE BOOST TECHNOLOGY

Charge it up. Keep it with you. Use it anywhere.

CS FREE is four unique products in one. It is a groundbreaking portable battery charger, a maintainer, an adaptive booster, and a hi-tech power bank.

In simple terms, the CS FREE is a 12V power bank for quickly charging devices as well as your vehicle's battery. CS FREE charges and maintains lead-acid batteries and lithium (12V LiFePO4) batteries. The Adaptive Boost Technology allows you to revive your vehicle's dead battery quickly. It supercharges your battery in the safest manner possible without needing to be plugged in to a power outlet.

But, that’s not all the CS FREE can do. It also keeps your other devices up and running wherever you go. Charge your phone, laptop, camera, and more. One device for all of your charging needs, even in the middle of nowhere.

Planning an extended off-grid trip? Add the CS FREE Solar Panel Charge Kit to your order.


  • Adaptive Booster: Adaptive Boost works out the safest way to power up your flat battery to get you going within 15 minutes.
  • Battery Charger: Use it as a portable charger to top off your battery, connect to a power outlet, or hook up to a solar panel kit for complete charging freedom anywhere you go. 
  • Smart Maintainer keeps your battery in peak condition at home or off-grid. 
  • Hi-tech Power Bank tops off your laptops, smartphones, tablets, and cameras whenever you need it. 
  • Smart and simple – no buttons or modes, just clear, easy-to-read displays.
  • Countdown LEDs show the time left before the battery is fully charged.
  • Charges and maintains all types of 12V lead-acid and lithium (LiFePO4) batteries.
  • Complete range of accessories available for handy storage and to give you complete freedom from a power outlet.

Adaptive Boost Technology

TECHNICAL DATA: 

INPUT USB-C, 5 VDC – 25 VDC, 3 ADC/60 W max
OUTPUT 12VDC, 20 amps/240 W Max
START VOLTAGE Minimum 3VDC
AMBIENT OPERATING TEMPERATURE   - 4 °F to +122 °F
AMBIENT STORAGE TEMPERATURE - 4 °F to +113 °F
BATTERY CHEMISTRY Lead-acid, Lithium
BATTERY TYPES 12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4
BATTERY CAPACITY 10-130 Ah
DEGREE OF PROTECTION IP54
WARRANTY 2 years
NET WEIGHT (UNIT WITH CABLES) DIMENSIONS (L x W x H) 3 lbs
DIMENSIONS 9.8 x 3.9 x 3.1 inches
USB-A OUTPUT 5 VDC, 2.4 ADC/12 W max
USB-C OUTPUT 5 VDC, 9 VDC, 12 VDC, 15 VDC, 20 VDC, 3 ADC/60 W max


POWER ADAPTER:

INPUT 100VAC–240VAC, 50Hz–60Hz
OUTPUT CABLE USB-C, 5VDC – 20VDC, 3ADC, 60 W max
CABLE LENGTH 3.28 ft.
CABLE TYPE USB-C

 

INTERNAL BATTERY:

CAPACITY 66 Wh
CELL CHEMISTRY Polymer Lithium-Ion
CELL TYPE Pouch Cell
DISCHARGE TEMPERATURE - 4 °F to +122 °F
CHARGE TEMPERATURE 32 ̊F to 113 ̊F
SHELF LIFE 1 year
LIFE SPAN 300 cycles, 80%

 

Document Downloads

CS FREE Product Sheet

CS FREE Manual

Free Shipping & 30 Day Returns

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