Duracell Dual Mini USB Car Charger

The Dual USB Car Charger can charge two devices at once, dynamically delivering the perfect power to each device via Smart Charge Technology. When two devices are connected, the USB Car Charger automatically charges each gadget at its fastest rate according to its needs. When the device requiring less power has been fully charged, the remaining power (up to the full 2.1 Amp capacity) is redirected to the higher-usage device to charge it as quickly as possible. Optimized smart charging with no guesswork required... now that's intelligence.