The CTEK CS Free is the Worlds first truly portable battery charger and conditioner. Now you can charge and maintain any lead acid or lithium battery without mains power connection. This makes it perfect for garages without electricity or for emergency use when you are away from home. The CS Free features adaptive boost technology which can get you going from a flat battery within 15 minutes.Charge and maintain any lead acid or lithium battery without the need for mains powerAutomatically analyses battery conditions and adjusts the charge accordingly for the fastest charge without damaging the batteryOnce the CS Free is fully charged it will hold the charge for up to a year so its always ready when you need itIncludes USB-C and USB-A outputs for charging phones, tablets and other devicesCountdown function shows you how long before the battery is in a fully charged conditionEasy to operate, simply connect to the battery and CS Free does everything else automaticallyThe CTEK CS Free char