> My phone has always done just fine mounted on a dash Phone (and their batteries) can be permanently damaged in heat. Some phones monitor the temperature. If

> My phone has always done just fine mounted on a dash Phone (and their batteries) can be permanently damaged in heat. Some phones monitor the temperature. If the phone exceeds temp thresholds, it warns you (blocking navigation information), stops charging, and may even shutdown to prevent further damage. If you're in a cooler climate and/or run the AC, maybe you wont have issues.