SKU: 13475500101

CTEK CS FREE Portable Battery Charger and Maintainer for Lead Acid and Lithium with Power Bank

Sale price$192.15 Regular price$213.50
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

CTEK CS FREE Portable Battery Charger and Maintainer for Lead Acid and Lithium with Power BankJust charge up CS FREEs internal battery and keep it with you wherever you go, and itll stay fully charged for up to a year. CS FREE features our revolutionary Adaptive Boost technology to quickly get you going from a flat battery. CS FREE automatically analyses the state of your battery and adjusts to the batterys voltage level. It then works out the safest and quickest way to give your battery the power it needs to start your vehicle within 15

Just charge up CS FREE’s internal battery and keep it with you wherever you go, and it’ll stay fully charged for up to a year. CS FREE features our revolutionary Adaptive Boost technology to quickly get you going from a flat battery. CS FREE automatically analyses the state of your battery and adjusts to the battery’s voltage level. It then works out the safest and quickest way to give your battery the power it needs to start your vehicle within 15 minutes. CS FREE works anywhere and can even be powered by solar or a 12V battery for longer term maintenance charging.

The CS FREE is the world’s first fully portable battery charger and maintainer with Adaptive Boost to get your flat battery going quickly and safely – without the need for mains power. In other words, it’s a 12V power bank for your vehicle that works with both lead-acid and lithium (12V LiFePO4) batteries. Plus, it’ll keep your portable tech, like phones, laptops cameras topped up too. So simply charge it up, take it with you and use it anywhere!

QUICK TO GET YOU GOING

The CTEK CSFREE is a portable Adaptive Booster that will get you going from a flat battery within 15 minutes.

CHARGE IT UP!

Just charge up the CS FREE’s internal battery and you’ve got a 12V power bank that will stay fully charged until you need it – for up to a year. And with USB-C connectivity, you can fully recharge your CS FREE in just one hour!

NO POWER? NO PROBLEM!

If you have a car, a motorcycle, a boat or any other 12V vehicle and want to charge and maintain it for longer periods of time…well no worries! We have some optional handy accessories to enable charging via solar panel or a 12V service battery.

SPECIAL DEAL

This exclusive combo includes a CTEK Power Bank so that you can charge your electronic devices wherever you go!

Specification


  • Brand: CTEK
  • Model: CS FREE
  • Battery Capacity: 10-130 Ah
  • Battery Capacity CEC-400: 10-130 Ah
  • Changing Category: AC Charging; DC Charging
  • Battery Voltage: 12V
  • Battery Chemistry: Lead Acid; Lithium-ion
  • Ambient Storage Temperature: -20 °C to +45 °C (-4 °F to +113 °F)
  • Ambient Operating Temperature: -20 ˚C to +50 ˚C (- 4 °F to +122 °F)
  • Cooling: Natural Convection
  • Frequency: 50-60 Hz
  • Input: USB-C, 5 VDC – 25 VDC, 3 ADC/60 W max
  • Output: 12 V, 20 A/240 W max
  • Battery types: 12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL; LiFePO₄
  • Rated voltage (Input): 100 VAC – 240 VAC
  • Degree of protection: IP54
  • Enclosure material: Plastic
  • User interface: LED symbols
  • Detachable charging cable length (output): 2m
  • Internal battery capacity: 66 Wh
  • Internal battery cell chemistry: Polymer Lithium-Ion
  • Internal battery cell type: Pouch Cell
  • Internal battery charge temperature: 0˚C to +45˚C (32˚F to 113˚F)
  • Internal battery discharge temperature: -20 ˚C to +50 ˚C (- 4 °F to +122 °F)
  • Internal battery lifespan: 300 cycles, 80%
  • Internal battery shelf life: 1 year
  • Internal battery weight: 0.5 kg
  • Mains adapter cable length: 1m
  • Mains adapter cable type: USB-C

IN THE BOX

  • 1 x CTEK CS FREE
  • 1 x CTEK Power Bank
  • Note: User Manual is accessible online

SIZE WEIGHT

  • Product Dimensions (W x L x H): 10 x 25 x 8cm
  • Product Weight: 1.4kg

SKU: CTEK-40-462-340


We accept Change of Mind returns for 14 days after you have received the item in cases where you have changed your mind or made an incorrect purchase and wish to return the product. This also applies to orders canceled when the item has already been dispatched from our warehouse. The item must be in a re-saleable condition to qualify for a change of mind refund. Deductions may apply including Initial and Return Shipping, as well as restocking fee of 10% of the product price

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13475500101

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4.8 ★★★★★
Based on 30 reviews
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Product Reviews
J
Verified Purchase
Johnny Leedy
Boise, US
★★★★★ 1
Watch stopped working
I want to return the watch I bought and this is the two year warrantee and it say I cant return it and its not been pass two years yet
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
J
Verified Purchase
J G
Lowell, US
★★★★★ 5
I am replacing one of John Camoran Swaey’s originals with his latest model!
As usual, Timex is still a GREAT PRODUCT!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
J
Verified Purchase
JC
Birmingham, US
★★★★★ 4
New watch
Product works great and is comfortable to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2024
K
Verified Purchase
K Reed
Dallas, US
★★★★★ 1
Not easy to get refund
I bought this for a watch. When it broke about 2 months in they told me to contact the Timex seller and ask them to help. I feel like it should have been a pretty simple "look at my broken watch." "oh, sorry about that but you bought insurance so here's your money" but it was not that. In the end I just bought a new watch because they made it too difficult to get help. Don't waste your money on the insurance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 1, 2024
C
Verified Purchase
Christy T.
Pawtucket, US
★★★★★ 5
Very Good watch
Color: Blackout
The one complaint I hear most often about this watch is it is harder to see in lower lighted conditions. Yes that is true BUT IT HAS INDIGLO so It is not a problem. Most of the time you don't need to turn the light on though. You usually can make out what it says even without the light. Usually if you can't see it then a slight angle change and you can see the time. If you still can't see it....it does have indiglo. It really takes no time at all to hit the button and you can see in any light condition. I have been looking at watches to buy for some time now and have looked at a lot of them. When I first got this in the mail I thought it to be small. I was comparing it to the G-shock series. The ones I was looking at the most was the XL ones. So yes it is small compared to the XL G-shocks. I have an XL watch and found that it gets in the way. When ever my wrist gets bent backwards my hand presses against the watch and restricts my movement that way. This is really the perfect size. One common complaint with Ironman's is they have started integrating the band with the watch. So when the band breaks, which they often did, the watch was useless cause you couldn't replace the band. This one has the replaceable band but still manages to have that integrated look, very nice. I really don't expect the band to break any time soon though. It feels very durable and thick. One thing about the band that I really like is at the end of the band. It has two little "nubbins" that lock in the that loop that holds the excess band in. They really work well. Every watch I have ever owned that little loop moves and releases the excess and then you have to fix it. It has yet to slip off once. All in all in is very nice watch. It works well, the price is very reasonable, The band is replaceable and durable, and the blacked out look is very nice. I love this watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 17, 2014

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