CTEK CS Free 4-in-1, Adaptive Booster, Battery Charger & Maintainer • 40-462








All-in-one solution to power up dead batteries and keep your vehicle batteries in peak condition
Replaces jump starters and boosters with Adaptive Boost – the safest way to revive your dead battery
Connect to a power outlet and turn the CS FREE® into a 5A smart battery charger
Charge and maintain any 12V lead-acid or lithium (LiFePO4) vehicle battery through a power outlet, solar panel or separate service battery
User-friendly, with straightforward operation and clear instructions.
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.
Charge it up, and the internal battery will remain fully charged for up to a year, always ready for when you need it.
Equipped with USB-C and USB-A outputs to charge devices such as laptops, smartphones, and tablets.
Features a new ergonomic design encased in a robust and durable housing.
Complete range of accessories available for handy storage and to give you complete freedom from a power outlet.
2 Year Limited Warranty
Adaptive Boost: Say goodbye to jump cables and jump starter packs. CS FREE® powers up your dead battery swiftly and safely, without risk of damaging your battery or vehicle electronics.
Charge and Maintain: Whether you’re connected to a power outlet, or going off-grid, CS FREE® keeps your battery in optimal condition. Giving you the freedom to charge and maintain any 12V lead-acid or lithium battery, while utilizing a power outlet, a solar panel or a separate leisure battery, the CS FREE® handles all your battery charging needs.
Hi-Tech Power Bank: Going beyond vehicle needs, 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.
Specs:
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: -20 ̊C to +50 ̊C (- 4 °F to +122 °F)
AMBIENT STORAGE TEMPERATURE: -20 ̊C to +45 ̊C (- 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: 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