Official Sony Ericsson Car Charger for your Cellular and Mobile Cell Phone! (Model Number 2038) Comfortable ergonomic design. Regulated charging will charge fast and then maintain your battery level at a slow charge afterwards. Will not overcharge the phone, digital regulation circuitry inside. Better quality than the Samsung "Branded" version, yet for much less. Premium quality coiled cord, will not easily lose it's coiling ability in heat or stretching.