what so ever, charger doesn't even really get that hot, and as an added bonus I can also use it for the two portable battery packs that I have (one of which is quick charge capable).

Arrived in a nice compact box, well packed.

Work as they advertised,although work all day,and never feel it was overheat,My last one charger should be melt if I use it all day, very valuable.

Don't pay retail, this is just as great as