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.