nah, didn't you know? if you look at them the wrong way they usually explode in a hellish ball of flames. Sometimes they cause so much carnage it makes the LHC look like a babies toy.
I have ran servo's off of a 2s a123 pack and it was glitching and had shutdown problems... i used it once and said 'screw that idea'.
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens