I don't know if any faster chargers would be safe for this kindle https://www.amazon.com/Kindle-Fire-HDX-Display-Wi-Fi/dp/B00BWYQ9YE/ref=sr_1_9?ie=UTF8&qid=1469848242&sr=8-9&keywords=kindle+fire since i'm fed up with the slow charging speed of it I thought oh it's almost my birthday might as well ask for a fast charger because i'm fed up with slow charging speeds, I was looking at this one https://www.amazon.com/Charger-Micro-USB-Blackberry-Qualcomm-Certified/dp/B00QEX83LA/ref=sr_1_8?ie=UTF8&qid=1469848796&sr=8-8&keywords=fast+charge+micro+usb+charger