This car USB charger is perfect: small, discreet, aesthetic, and yet delivers up to 1.2A output. At rest, you can leave it plugged permanently even if your cigarette lighter remains supplied ignition off: it consumes only 3 mA / h! On a modern car, it is less than current consumers (clock, alarm, various LEDs on the dashboard).
Its power is perfect for my Tomtom GPS (exactly the same capacity as the original charger). For other devices, it is an ultra-fast charger compared to the more common USB charger (between 700mA and 1A max)
