With iOS 13 there comes the new function “Optimized Battery Charging”, which is designed to protect your battery from abrasion and to extend its life. Your device remembers how it’s usually charged, which means that in certain situations your iPhone delays charging more than 80%. This feature is enabled by default when you update iOS. This means that if your Apple devices are not fully charged, it is not a system failure of the ALLDOCK. The USB stations charge reliably, but do not bypass any system settings of your Smartphone.