i got a free 6ah Dewalt Flexvolt battery recently as part of a Dewalt offer but i have only the 20V Max type tools. I have seen some Youtube videos where guys are saying to never use these with normal Dewalt tools or they will burn out the motors, but i have not seen much also on forums about this. 
It would be great to use this battery but i don't fancy burning out my existing tools ! Have any of you guys had problems using Flexvolt batteries like this ??
It would be great to use this battery but i don't fancy burning out my existing tools ! Have any of you guys had problems using Flexvolt batteries like this ??
