Battery charger CTEK CS Free

  • Brand: Ctek
  • Product Code: CTEK CS Free
  • Sku: 40-462
  • Availability: In Stock
Ex Tax:231.41€
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  • For 12V batteries. 
  • Charging current: max.20 A. 
  • Batteries from 10 till 130 Ah. 

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.

2 year ‘peace of mind’ warranty.

User manual here .

Tags: Battery charger, CTEK, CS Free

Battery voltage (V) 12
Charging current 1 (A) 20
LiIon mode Yes
Charging current 2 (A) 5
Battery capacity (min., Ah) 10
Battery capacity (max., Ah) 130
Protection IP54
Weight (kg) 1.4
Size (cm) 24.8 x 9.8 x 7.8
Warranty (years) 2