CTEK 12V CS FREE Portable Battery Charger – Smart & Adaptive Charging Anywhere
Get the CTEK 12V CS FREE Portable Battery Charger for effortless charging anywhere. With adaptive boost, fast charging, and smart technology, it's perfect for cars, motorcycles, and boats. Stay powered up on the go!
The CTEK 12V CS FREE Portable Battery Charger is an advanced all-in-one charging solution designed to keep your vehicle battery charged and maintained anywhere. This innovative charger features Adaptive Boost™ technology, allowing you to revive a dead battery in minutes without the need for a power outlet. Whether you're on a road trip, camping, or at home, the CS FREE ensures your battery stays in peak condition. Its intelligent four-stage charging system adapts to your battery’s needs, providing optimal charging without overcharging or damage. Compatible with lead-acid and lithium (LiFePO4) batteries, it is a must-have for cars, motorcycles, RVs, boats, and more.
Best Uses
- Road Trips & Travel – Ensure your battery stays charged wherever you go.
- Outdoor & Camping – Power up your battery even in remote locations.
- Vehicle Maintenance – Keep your car, motorcycle, or boat battery in top shape.
- Emergency Situations – Quickly boost a dead battery without jumper cables.
- Workshops & Garages – A smart solution for maintaining stored vehicles.
Top Features
- Adaptive Boost™ Technology – Revives dead batteries in minutes without the need for a power outlet.
- Portable & Compact Design – Lightweight and easy to carry, perfect for travel and outdoor use. No cables or mains power needed. Built-in battery powers the charging and jump-starting functions.
- Smart Charging System – Automatically adjusts voltage and current for optimal battery performance.
- Versatile Compatibility – Works with all 12V lead-acid and lithium (LiFePO4) batteries.
- Solar & Battery Power Ready – Can be charged using solar panels or a separate battery pack for off-grid use.
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Jump Starter Function: Safely jump start your vehicle with a depleted battery.
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Maintenance Charging: Keeps your battery at its optimal charge level during storage.
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User-Friendly Interface: Simple and intuitive to use with clear LED indicators.
Top Benefits
- No More Dead Batteries – Always have a backup solution for unexpected battery failures.
- Convenient & Hassle-Free – No need for external power sources or jump-start cables.
- Extends Battery Life – Prevents overcharging and undercharging for longer battery performance.
- Multi-Use & Reliable – Perfect for vehicles, boats, motorcycles, and even small industrial equipment.
- Eco-Friendly Charging – Compatible with renewable energy sources like solar power.
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Freedom from Outlets: Charge and jump start your vehicle anywhere, anytime.
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Extended Battery Life: Optimized charging and maintenance functions prolong battery lifespan.
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Peace of Mind: Be prepared for roadside emergencies and avoid being stranded with a dead battery.
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Versatile Use: Suitable for a wide range of 12V lead-acid batteries in various vehicles and equipment.
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Safe and Reliable: Advanced technology ensures safe charging and jump-starting without damaging your battery or vehicle electronics.
Multi-functional portable charger and smart maintainer with Adaptive Boost technology
CS FREE gives you the freedom to charge and maintain any 12V lead acid or lithium battery wherever you are – even if you’re nowhere near a power outlet. Use it as a portable charger to top up your battery with mains power, or hook it up to a solar panel kit or 12V battery for complete charging freedom anywhere you go. CS FREE also features our revolutionary Adaptive Boost technology so if your vehicle won’t start, just connect it up and CS FREE will automatically analyse the state of your battery. It’ll then work out the safest and quickest way to give it the power it needs to start your vehicle within 15 minutes. Unlike most ‘boosters’, CS FREE is sensitive and safe, so it avoids damaging your battery or your vehicle’s electronics by only giving it the charge it needs to get you going. CS FREE is also a smart maintainer and hi-tech powerbank to keep your battery and tech powered up so they’re always ready to go.
- Works with all types of 12V lead acid and lithium batteries
- Suitable for use on motorbikes, cars, leisure vehicles and vans
- Countdown function shows you how long there is left before your battery is fully charged
- Can be left safely connected for smart maintenance charging
- Can be charged and used with 12V accessory socket, service battery or solar panel
- USB-C and USB-A outputs for charging tech like laptops, smartphones and tablets
- Easy to use, easy to operate, easy to understand
- No modes to select – just connect and the CS FREE will do the rest
- Complete range of accessories available for mains free charging and handy storage
- New ergonomic design with a tough and durable case.
- Easy to carry around or wall mount using the optional CS Wall Mount
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2 year ‘peace of mind’ warranty
Technical data
- 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)
- Cooling: Natural convection
- Input: USB-C, 5 VDC – 25 VDC, 3 ADC/60 W max
- Output: 12 V, 20 A/240 W max
- Start voltage: 3.0 V
- Frequency: 50-60 Hz
- Battery types: 12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL; LiFePO₄
- Enclosure material: Plastic
- Rated voltage (Input): 100 VAC – 240 VAC
- Degree of protection: IP54
- 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
- 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 lbs
- Detachable charging cable length (output): 2 m
- 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: 1 m
- Mains adapter cable type: USB-C
- 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: USB-C input
- 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
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