If your tablet is empty, charge it with a BlueBuilt tablet charger. BlueBuilt is Coolblue's own brand. You receive a 5-year warranty on our products. There are different types of chargers for different tablets. With a 30W charger, you can charge various iPad models for example. Your iPad will be charged for 50% after charging for half an hour. Without fast charging, this takes twice as long. You use a BlueBuilt tablet charger in combination with a USB-C cable for most iPad models and all Android tablets.