On 7 April 2015 at 15:13, Jesse Lackey wrote: > With the size of batteries in smartphones and in particular tablets 1amp > or even 2amp @ 5V is still under 1C going into the battery... > The latest iPads have about 10.5 Ah batteries!. At 1C that needs an ~=3D 50W charger. Equivalent to that for many laptops. Which makes sense. Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .