ok, so i had bought a few 36 volt batteries recently, and all were made in 2010. and what do you know, two of them have the samsung cells. when i had bought these, i had marked one of those two, since i thought it didnt have as much power as i thought it should. i then figured i'd see how the new batteries performed after a few charge cycles. well now i know why i thought that battery was weaker.
it seems dewalt changed cells somewhere between the 22nd and 30th week of 2010. you can also see that the top number format is now different on the batteries with the samsung cells.
i really want to hear what dewalt has to say about this.