It doesn’t suck power. As in vampire power, the new buzz term for chargers that continue to slurp electricity even when they are not actively charging your phone. AT&T’s soon to be released ZERO Charger automatically shuts down when it is not in use, eliminating 100% of vampire power. The ZERO is an AC charger with a USB socket, allowing you to use it with all sorts of devices that can be charged via USB. There’s no info on price or release date, but you can sign up to notified via email when it’s available.