CS FREE CTEK 12V 5A Charger

The CTEK CS FREE 12V 5A Smart Charger is the world’s first adaptive booster, battery charger, and maintainer in one portable unit. Designed for complete flexibility, it works without being plugged into mains power — allowing you to charge, maintain, or even start your vehicle anytime, anywhere.

Perfect for cars, motorcycles, boats, and recreational vehicles, the CS FREE uses adaptive charging technology to automatically detect your battery type, condition, and size, then deliver the precise amount of charge needed for maximum battery life. Whether connected to mains power, solar panels, or a 12V service battery, it ensures safe, efficient, and intelligent charging in any environment.

Key Features

• 3-in-1 Functionality: Works as an adaptive booster, smart charger, and long-term battery maintainer.
  

• Portable Power Freedom: Operates without mains electricity — ideal for travel, camping, or emergencies.
  

• 12V Lithium and Lead-Acid Compatible: Charges and maintains all 12V LiFePO4 and lead-acid batteries.
  

• Adaptive Charging Technology: Automatically adjusts charge rate and voltage to suit your battery’s condition.
  

• Safe Start Boost: Instantly starts flat batteries in minutes without damaging sensitive electronics.
  

• Multiple Power Sources: Recharge via mains supply, solar panels, or another 12V battery.
  

• Lightweight and Compact: Durable, portable design with intuitive LED interface.
  

• Maintenance Mode: Keeps batteries at full charge for long-term storage or infrequent use.
  

• Fully Protected: Spark-free, reverse-polarity and short-circuit safe for total peace of mind.
  

• Datasheet