CTEK CS FREE portable 12V battery charger

The CTEK CS FREE is the world's first portable battery charger with Adaptive Boost technology.
You can charge and maintain any 12V lead-acid or lithium vehicle battery – wherever you are. And all without a power outlet.

PORTABLES STORE WHEREVER YOU GO
Simply charge CS FREE's internal battery and keep it with you wherever you go. The internal battery stays fully charged for up to one year.
The CS FREE features our revolutionary Adaptive Boost technology, which allows you to quickly get back on the road even with a deeply discharged battery. The CS FREE automatically analyzes your battery's condition and adjusts to its voltage level. It then calculates the safest and fastest way to recharge your battery.
to provide the energy needed to start your vehicle within 15 minutes.
The CS FREE works anywhere and can also be operated with the optionally available solar panel kit or a 12V service battery for longer-term maintenance charging.

• Portable battery charging and maintenance - wherever
  wherever you are
• The CS Free's internal battery lasts until [duration] on a full charge.
  to one year
• Adaptive Boost technology allows for
  Deeply discharged battery within 15 minutes
  live again
• Can be used with an optionally available solar panel
  or charged with a 12V service battery and
  be operated
• Safe and easy to use – simple
  Turn it on, connect, and CS FREE will take care of it.
  take care of the rest
• The countdown function shows you how long
  it will still take until your battery is fully charged
  is charged
• USB-C and USB-A outputs for charging
  Laptops, smartphones, tablets etc.
• New ergonomic design with a robust
  and durable housing
• 2-year warranty

Technical data