While the adapter may provide >500mA, the phone won't take it unless the adapter it's plugged into identifies itself as being able to supply lots of current. The Samsung adapter does that. My Motorola adapter does that, too.
USB 3.0 includes a charging spec (up to 1.5A, I think), but no clue whether your Samsung phone implements it. - Alex -- Smart is knowing that a tomato is a fruit. Wise is knowing better than to put one in a fruit salad. On Sun, Dec 16, 2012 at 4:26 PM, Andrew Webber <[email protected]>wrote: > I was very pleased to finally be able to use the USB tip that came > with my travel adapter a couple of years ago. It's not working well at > all. :( > > I've got one side of the Y plugged in to my X220 (tip 20V) and the > other side to USB. My phone was at 10% when I started and it kept > giving me low-battery warnings while plugged in. I was using a generic > USB cable and a mini-to-micro adapter. The phone was recognizing it > was plugged in, showed the charging symbol, then every couple of > minutes gave the 10% warning, which makes me think it was losing its > plugged-in-ness. Eventually it got down to 8%. > > Now I've got the stock Samsung USB-to-micro cable plugged in to the L9 > tip and it's climbed back up to 9%. Perhaps either the adapter or the > cable were faulty. Guess I'll have to test further (try them with the > Samsung 120V adapter etc.). > > That said, I can't find anything that specs the L9's output. Is it > 500mA, 1A, 2A, or something else? I know a notebook port (500mA) takes > forever to charge compared to the Samsung wall adapter (2A I think). > So if the Lenovo L9 is 500mA I might as well use the computer, and > better still I should shop for another couple of 2A plug adapters. > > Thanks! > > - - > Andrew mailto:[email protected] > > _______________________________________________ > Thinkpad mailing list > [email protected] > http://stderr.org/cgi-bin/mailman/listinfo/thinkpad > _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
