Mariella Moon / Engadget
Anker charging accessories are up to 40 percent off in one-day Amazon sale – You can get Ankers power banks, cables and other charging accessories for up to 40 percent off only for today at Amazon. The brands pint-sized 30-watt Nano II charger thats powered by GaN technology, for instance, is currently listed for $23.80. Thats the lowest price weve seen for the device, …