Traxxas iD batteries deliver an easier and safer LiPo charging solution when used with our exclusive iD chargers. You just plug in your iD batteries and press start. The iD charger handles all the settings andquickly gives you an optimized charge, every time. The new 4s capable EZ-Peak Live multi-chemistry charger features built-in Bluetooth to work seamlessly with the new Traxxas EZ-Peak Live app for iOS and Android. The EZ-Peak Live app gives you detailed information, remote monitoring, and advanced operating functions through the high-definition color interface on your mobile device. Along with the new technology, we added more charging power, up to 12-amps for 2s LiPo batteries! Your batteries are charged faster so you can get back to the fun of driving sooner.