Samsung Launches $19.99 Power Sharing Cable. And, in the Monday edition of the too cool for school tech, we have the new Samsung power sharing cable that plugs into Samsung devices and any micro USB peripheral and uses the device battery to charge another device. Now, in addition to my several spare batteries, I now can charge my Gear Live SmartWatch and my LG Bluetooth Earset with my phone, in a pinch. Samsung means Innovation. Can't do this with iPhone.