![]() ![]() I've found the following brands compatible with the PD specification: Some have PD written on top of the USB-C port. There are not many car chargers compatible with that specification. ![]() You absolutely need a charger (car or wall charger) compatible with the "PD" standard,i.e Power Delivery Standard. You absolutely need to charge your iPad via a USB-C to USB-C power cable.ĭo no try via a USB-A to USB-C, it will not work when you have only the empty battery on your display.ĭue to missing wires in the USB-A connector, the charger cannot "talk" to the iPad and adjust the charging power. Īgain thanks to Aabshir for his feed-back after going to the "Genius"Īfter spending my last Sunday to analyze the specs, I've found the way to revive my iPad from a 12v car charger. Or perhaps the BMS is very dependent upon a kick from the new powerful charger.Īnd how about the other Apple chargers, or the QC3.0 or QC4.0 chargers, battery bank, USB 3.0 ports etc. This is a glitch in the BMS as there is enough capacity left in the battery to wake up the iPad and display the empty battery on the screen. It should be easy to replicate that specific situation with an oven in a lab. This is likely the reason why there is like a " pumping effect" when the iPad is connected to a USB 3.0 port or to a battery bank. ![]() Or the BMS is cutting the charger off because it believes that there is a safety issue with the Lithium battery. Now the voltage is way too low so that the Battery Management System (BMS) can no longer trigger a new charge. This has reduced the Lithium battery capacity with also a voltage reduction, now below the normal cutoff voltage expected by the BMS. Then the temperature in the car has decreased to something like 20☌. Something has drained the battery (background program or whatever) until the BMS decided to shutdown the iPad. The temperature elevation has slightly increased the Lithium battery capacity and voltage. This is not an exceptional situation in a car. I would estimate 45☌ at least but no more than 50☌. The temperature in both vehicles was rather high. The iPad was left in our Campervan the first time, and in the car a few day's ago. This is how I would explain what killed my iPad (twice) ![]()
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