This level 1 trickle charger from ZenCar plugs into any standard 120V wall outlet, and it is adjustable so you can set the rate that works best for you – for example, if you’re sharing a circuit with other appliances you can easily lower the current. Tapping on the display cycles through the three available power levels: 10, 12, and 16 amps. A handy charging cradle is also included which you can mount on the wall for use at home. When you want to take the charger with you, simply unplug and slide it out of its cradle. This charger is equally at home on the road and, well, at your home. Cable length is about 25 feet.