trustfire 18650's slowly leaking voltage

[big beam]

I got some trustfire 18650's(2) just to try them and they were cheep.It's the grey ones that are supposed to be fully protected.They seem to be losing about .01V per day.I have a lot of AW's batts and they don't seem to do that.Are they bad batts or is this normal for cheep batts.
THANKS DON

 

[Drewfus2101]

Sounds about normal for cheap batteries.

 

[Fallingwater]

Protection circuitry tends to eat a small amount of energy from the cell.