Finally an easy way when loading tablets to measure the charge current. What many do not know that the mode largely depends on the cable used during charging. So it is that even invite Chargers with 1000mA or more with 99% of the USB cable with 500mA. Many tablets is not enough and that it deflates when using the cable more than "inside" is loaded. On the tablet can not be seen. Tip: Amazon Basic Cable 90cm (the longer versions unfortunately also switches to data mode, and that is: Limited to 500mA)