Ctek Cs Free Portable Battery Charger

CTEK CS FREE is the world’s first truly portable battery charger and maintainer with Adaptive Boost technology. You can charge [read more]

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Regular Price: € 462,38

Price: € 393,02

  • Price without VAT for extra UE countries € 322,15

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CTEK CS FREE is the world’s first truly portable battery charger and maintainer with Adaptive Boost technology. You can charge and maintain any 12V lead acid or lithium vehicle battery anywhere without being connected to a power outlet. And if your battery’s flat, CS FREE’s revolutionary Adaptive Boost technology will get you going within 15 minutes.
Portable battery charger and maintainer with Adaptive Boost technology.
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.
Works with all types of 12V lead acid and lithium batteries.
Suitable for use on motorbikes, cars, leisure vehicles and vans.
Can be left safely connected for maintenance charging. Can be charged and used with 12V accessory socket, 12V service battery or solar panel.
Easy to use, easy to operate, easy to understand.
Easy to carry around or wall mount using the optional CS Wall Mount.
Compatible with new CTEK CS FREE accessories.
Protects your battery, safe and easy to use and fully automatic.
Battery capacity
10-130 Ah
Battery capacity CEC-400
10-130 Ah
Charging category
AC charging; DC charging
Battery voltage
12 V
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)
Natural convection
Start voltage
3.0 V
50-60 Hz
USB-C, 5 VDC – 25 VDC, 3 ADC/60 W max
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
Dimensions (L x W x H)
9.8 x 3.9 x 3.1 in
Dimensions (L x W x H)
248 x 98 x 78 mm
Dimensions (L x W x H)
9.8 x 3.9 x 3.1 pulgadas
Enclosure material
Net weight (unit with cables)
1.4 kg
User interface
LED symbols
Net weight (unit with cables)
3 lbs
Net weight (unit with cables)
3 libras
Detachable charging cable length (ouput)
2 m
Internal battery capacity
66 Wh
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 shelf life
1 year
Internal battery weight
0.5 kg
Mains adapter cable length
1 m
Mains adapter cable type
2 years
Warranty, info
Limited Warranty
Warranty, details
CTEK issues a limited warranty to the original purchaser of the product. Depending on the product, the limited warranty period will vary. The limited warranty is not transferable. The warranty applies to manufacturing faults and material defects. The warranty is void if the product has been handled carelessly or repaired by anyone other than CTEK or its authorized representatives. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e. no consequential damages. Moreover, CTEK is not obligated to any other warranty other than this warranty.
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
Mains adapter input
100 VAC – 240 VAC, 50 Hz – 60 Hz, 60 W max
Mains adapter output
USB-C, 5 VDC – 20 VDC, 3 ADC, 60 W max
USB-C input
Internal battery cell chemistry
Polymer Lithium-Ion
Internal battery cell type
Pouch Cell
Internal battery life span
300 cycles, 80%.

Additional Info

Product Code CS-FREE
ID 17655


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