CTEK CS-FREE, 12V, Portable Battery Charger, Smart Maintainer & Adaptive Booster Technology, UK Plug

TEK CS FREE – 12V Portable Battery Charger, Smart Maintainer & Adaptive Booster (UK Plug) The CTEK CS FREE is an innovative all-in-one 12V battery solution that combines an adaptive booster, smart charger, maintainer , and power bank in one ultra-portable unit. Designed for both on-grid and off-grid use, the CS FREE gives you the freedom to revive dead batteries, maintain battery health , and charge personal devices wherever you are— without the need for jump leads or mains power . Key Features ✅ Adaptive Boost Technology A smart alternative to jump-starting—revives a flat battery safely and quickly without damaging your battery or vehicle electronics. ✅ All-Purpose Battery Charger & Maintainer Charges and maintains any 12V lead-acid or lithium battery (LiFePO₄) using mains power, solar panels, or a 12V service battery. ✅ Off-Grid Capable Use solar panels or a separate leisure battery for completely portable charging and maintenance in remote areas—no mains required. ✅ High-Tech Power Bank Equipped with USB-C and USB-A ports for charging smartphones, tablets, laptops, cameras, and more on the go. ✅ Fully Automatic Intelligent electronics detect battery condition and apply the correct charge safely—no user settings needed. ✅ Safe for Vehicle Electronics Spark-free, short-circuit proof, and reverse polarity protected. Safe for modern cars with complex ECU systems. Specifications Battery Types Supported : 12V Lead-Acid (WET, MF, AGM, GEL, EFB) 12V Lithium (LiFePO₄) Battery Capacity : 10–130Ah (charging) | Up to 180Ah (maintenance) Charging Current : Up to 5A Boost Output : Adaptive Boost – automatically controlled, not fixed voltage Input Options : Mains power (via included UK plug) 12V DC (from leisure battery) Solar panel (via optional solar kit) USB Outputs : USB-A and USB-C (for devices like phones, tablets, cameras) Operating Temperature : -20°C to +50°C Display : LED charge level and status indicators IP Rating : IP54 (dust and splash resistant) Dimensions : Approx. 248 x 98 x 78 mm Weight : Approx. 1.4 kg Frequently Asked Questions (FAQ) Q: What is Adaptive Boost, and how is it different from jump-starting? A: Adaptive Boost safely analyzes your battery and delivers a controlled charge to gently revive a flat battery , unlike traditional jump-starts that can damage sensitive electronics. Q: Can I use the CS FREE when there’s no mains power? A: Yes! The CS FREE supports solar charging and 12V leisure batteries , making it perfect for off-grid adventures and emergency use. Q: Is it suitable for lithium batteries? A: Yes, it supports 12V lithium (LiFePO₄) as well as all standard lead-acid battery types. Q: How long does Adaptive Boost take to power a dead battery? A: Typically within 15 minutes , but timing depends on the battery’s condition and size. Q: Can it charge my phone or laptop? A: Absolutely. It functions as a USB power bank , with USB-A and USB-C outputs for device charging.