:hmmmm: Someone reviewed the PureGear charge only cable on Amazon("http://goo.gl/2JpX4") that this cable flaked out their Nexus (4?). Anyone use this cable on a Nexus 4 or late model smartphone? My understanding is the charge only cable is to force the faster A/C charge rate. When running the GPS and maybe a few other apps in the background finding the best charging setup is important. A bunch of people using high amp USB car adapters, 2 to 3 amps for various phones. Phones like the Nexus or S3 will pull only what amps are needed. T-Mobile store has stated and there have been post that car charging is bad for a phone's battery life. How is this any different than A/C charging? For some on the go people fast charging from the car is a necessity. I am using an air vent universal car mount until I find the right N4 dock/mount. If heat from charging and running GPS apps is the soul culprit then my N4 may stay on the vent. If it is the fact that these car USB adapters are producing unstable or dirty power at load maybe a 12v inverter is the way to go; this type of stuff is above my pay grade. Information on charging batteries with inverters. Cables 28/24AWG Cable Ferrite Core Gold Plated - Too Thin ? PureGear charge only cable - No Specs Inverters with high output USB Duracell DRINVP175 175-Watt 2.1-Amp USB Wagan EL2003-5 BESTEK 75w Dual USB BESTEK 150W Dual USB 3.1A BESTEK 150w Dual USB 3.1A :driver: 12v USB Adapters. iFlash High Output 4 USB Car Charger. Motorola Vehicle micro-USB Rapid Charger - No USB, dedicated, popular. Bracketron Dual USB Car Adapter (UGC-298-BL) - Gives a choice, needs a mod. PowerGen Dual USB 3.1A 15w - Not 3amps. Griffin Powerjolt - Needs a mod. PowerGen Dual USB Port 2A - Blue LED too bright? Large, poor fit? Maybe best choice? DX Car Cigarette Powered Charger w/ 4 USB Output for Cell Phone / Table PC + More - White Output current: 500/1000/2100/1000mA A quality version of this would be great. If these were real world outputs that would be great, who knows? Newegg.com - Rosewill RCP-SC41 1A USB Micro Car Charger $30 versions Just Mobile Highway Car Charger, Silver CC-188 iLuv iAD610 DualPin Dual USB Car Charger for iPad/iPhone/iPod IAD610BLK Any suggestions on a 2 to 3 amp USB car adapter. Total amps is usually divided by 2, so 2 amp adapter is about 1 amp per USB port. Some have a dedicated 2amp output. Other devices may take advantage of the high output, including Apple. Friends who ride might have Apple. Apple has a unique charging circuit. Not sure how this effects an Android device. Several of the more highly reviewed adapters may be for Apple only. Most can support Apple or Android it is just a question of what actual power gets to the Android. If you do the A/C mod on a USB car adapter is a charge only cable still necessary? :alberteinstein: These get a bit complicated. K Crawford has done a great job on his six reviews at Amazon, including one on the White PowerGen Dual USB Port 2A (Amazon.com: Profile For K. Crawford: Reviews). Some don't fit the socket well, some like the Bracketron Universal Dual USB needs a mod, some have the complicated Apple circuit, and most do not deliver on the amps. These all run about $10-$15. Maybe a better solution would be to create a DIY 12V to USB charging hub that would run to the fuse box. Some quick searches turned up no affordable quality DIY projects, anything worth doing was more than $40. There are often more than two people in the car with smartphones, four USB ports would get used enough to justify having it. Two high output USB ports would be the minimum. 12v USB hub for $50 Amazon.com: 12 Volt USB hub Industrial 4-Port USB 2.0 Powered Hub for PC-MAC DIN-RAIL Mount: Electronics. Side note: I have a spare 1.5' Garmin USB cable. The cable has a micro on one end. Where there is writings on the full sized end there is a black raised plastic X. I would think this is to signify that it is not a standard USB. Offhand, anyone know if this would be the same configuration as a charge only cable?