Traded in 4 old/broken cell phones, a broken portable DVD player, and a pair of cheapy walkie talkies that I got for free years ago.
They didn't power up anything or ask for chargers or cords. But, for all the cell phones, they did remove the batteries and scanned the IMEI numbers. For the walkie talkies, they counted them separately instead of a pair; no idea why. The portable DVD player gave them trouble because it was a DVD player, but it was also "small" and the ad was for "small electronics." They ended up entering it as a "handheld gaming console" and I was on my way.
26.2 | 13.1
+ Quantum Conundrum
+ LittleBigPlanet 2
Far Cry 3