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The CS FREE is the ultimate all-in-one solution to quickly power up flat batteries and keep your vehicle batteries in peak condition wherever you are. Say goodbye to jump cables! Through its Adaptive Boost technology, CS FREE powers up your flat battery swiftly and safely, without risk of damaging your battery or vehicle electronics. Going off-grid? CS FREE keeps your battery in optimal condition wherever you are, by giving you the freedom to charge and maintain any 12V lead-acid or lithium (LiFePO4) battery, while utilizing a solar panel or a separate service battery. Need to power your electronic devices? CS FREE doubles as a high-tech power bank, allowing you to charge your USB-devices whenever they need it, ensuring you are always connected on the go.
;*;All-in-one solution to power up flat batteries and keep your vehicle batteries in peak condition .;*;Replaces jump cables with Adaptive Boost – a safe and easy way to revive your flat battery .;*;Charge up your CS FREE through the power outlet, using the included USB-C power adapter, or via solar power, a separate service battery or the vehicle’s cig-socket, using optional USB-C CTEK accessories. CS FREE is not compatible with CTEK CONNECT or INDICATOR accessories. ;*;Charge and maintain any 12V lead-acid or lithium (LiFePO4) vehicle battery through solar panel or separate service battery .;*;User-friendly, with straightforward operation and clear, easy to read displays. ;*;No need to select modes—simply connect, and the CS FREE will handle the rest. ;*;Countdown function shows you when you have enough power to start the vehicle and the remaining time until your battery reaches a full charge. ;*;Equipped with USB-C and USB-A outputs to charge devices such as laptops, smartphones, and tablets. ;*;Features a new modern design encased in a robust and durable housing. ;*;Comes with a 2-year "peace of mind" warranty.
| Charging Category | AC charging;DC charging |
|---|---|
| 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 |
| Battery chemistry | Lead acid;Lithium-ion |
| Start voltage | 3.0 V |
| Battery voltage | 12 V |
| Battery capacity | 10-130 Ah |
| Internal battery capacity | 66 Wh |
| Battery Cell Chemistry | Polymer Lithium-Ion |
| Internal Battery Life Span | 300 cycles, 80% |
| User interface | LED symbols |
| Degree of protection | IP54 |
| Dimensions | 248 x 98 x 78 mm |
| Net weight | 1.4 kg |
| Cable length | m |
| Warranty | 2 years |
| Warranty information | 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. |
Standard shipping
Orders placed before 11:00 AM will be handed over to DHL the same day.
Current delivery time for DHL Standard Shipping is estimated to be 4-6 days. CS FREE, RB 3000 & RB 4000 are only delivered with standard shipping as the products contain lithium batteries.
Express package
Orders placed before 11:00 AM will be handed over to DHL the same day. Current delivery time for DHL Express is estimated to be 2-4 days.
Returns
We apply a 14-day exchange and return policy. We will exchange the item or refund you the amount you paid for the item. When returning, you are responsible for the return postage.
CS FREE
Power to go wherever you are
Portable and solar powered with powerbank functionality for phone and computer charging
Starts any 12V battery in 15 mins
For cars, motorcycles, vans, leisure vehicles, boats and more
- +more
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Adaptive Booster to power up flat batteries, and Portable Battery Charger to charge your vehicle battery wherever you are. Say goodbye to jump cables! CS FREE powers up your flat battery safely within minutes, without risk of damaging your battery or vehicle electronics. Going off-grid? Charge and maintain any 12V lead-acid or lithium (LiFePO4) battery anywhere with solar or service battery power, using CS FREE’s optional accessories.
Specifications
Battery Voltage
12 V
Battery Capacity
10-130 Ah
Internal Battery Capacity
66 Wh
Charging Category
AC charging;DC charging
Battery Chemistry
Lead acid;Lithium-ion
Battery types
12 V, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO₄
Warranty
2 years
Enhance your charging experience
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