I heard about this a little while ago. Dewalt stole their battery technology from a college and farmed it out to China
Keep in mind it is not the LiIon technology that you see everywhere. This is Lithium Metal Phosphate. I disassembled one of these and noticed it was not a LiIon like Dewalt advertises. I didn't know what type of cell it was to be honest. Supposedly this is a more heat stable cell than LiIon but time will tell all.
Here is a link to the article http://www.bickelbrewer.com/index.ph...2&tt_news=1860