I noticed that the amperage output on the Kindle Fire charger is pretty high (1.8 or 1.6 A if I remember correctly). That's quite a bit higher than standard cell phone chargers at 850 mA or my Galaxy Nexus charger at 1.0 A. Could I use the Fire charger on my Nexus, and if I do, will it charge faster? This may be a dumb question, I'm just curious. Thanks!