I remember hearing about if you buy the wrong type of chargers (i.e. other than OEM), there's a chance that it could potentially affect the battery performance/life, so before I make a purchase on Amazon, I've pulled up some chargers by Motorola... The thing is though, Motorola's prices on Amazon are significantly cheaper than they have it listed on their own website. So basically, I'm wondering if these on Amazon are safe for my DROID RAZR MAXX. Here they are: Amazon.com: Motorola Vehicle Power Adapter micro-USB Rapid Rate Charger: Cell Phones & Accessories Amazon.com: OEM Motorola SPN5689A Dual Port Universal Wall Charger for Motorola Droid RAZR MAXX XT916 / XT913, Admiral / PAX XT603, Atrix 2, DROID RAZR XT912 /HD, Photon 4G, Triumph WX435, Theory WX430, Titanium i1x, i412, XPRT, Droid X2, Clutch + i4 Amazon.com: OEM Motorola ECOMOTO Micro USB Data Cable for Motorola Droid RARZ, RAZR Maxx, Droid 3, Droid 4, Photon 4G, Droid Bionic, Atrix 4G, Atrix 2, and Motorola Droid Xyboard 8.2 & 10.1 - Bulk Packaging: Cell Phones & Accessories Thankss!