Battery health
Hi can I use iPhone charger to charge my iPad?does it harm to my ipad’s battery ?
iPad Air, iOS 12
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A 5W iPhone Power Adapter (charger) is inadequate to charge the majority of modern iPad models. A 10-12W Power Adapter is normally considered to be the minimum practical rating. A 5W charger, if it works at all, will only charge an iPad at a very slow rate.
The more recent models of iPad will optimally charge with an 18W USB-PD compliant charger.