When your tablet is empty, you can charge it with a tablet charger. Use a Power Delivery fast charger for your iPad and Samsung S series tablets. With a 20W iPad charger, you can charge various iPad models. Your tablet is charged for 70% after an hour. That's 1.5 times faster than with a regular charger. Your iPad Pro also supports 30W charging. Do you have a Samsung Tab S7 or S8? These charge 2 times faster with a 45W Samsung Super Fast Charging charger than with the included Samsung tablet charger. Use a USB-C charger for most iPad models and Android tablets. You need a Lightning cable for iPad starter models and the old iPad Air / Mini.