Chosen Solution
Hi I have 2 ipad mini first generation that both have the same issue. Not powering on, not recognized by Itune when connected to a PC and indeed, not charging at all. All these symptoms make me think about the bloody U2 IC charging chip 1608A1. To be sure about that the good thing would be to charge the batteries for not more that 2-3% as it should be enough to enable me to start them (assuming it an U2 IC issue). Can somebody give me an advise about the charger to use and which input voltage / mAH must be used (I know that the output voltage is 3.72 V 4440 mAh but not sure for the input ) . Thanks for the help
Get a variable power supply and set it to 3.7v. Press pos to pos and neg to neg and hold it there for 5 minutes. Measure the voltage again. See if it went up. If it did, try to start the iPad. If not, try a new battery.
I would only use and original Apple charger as there are reports of failures using knock offs: iPad USB 10W AC Adapter (Original) Lightning to USB Charging Cable
