While the restart button graphic is interesting and fits with the tag, I think any primary visual should relate to the brand name as opposed the slogan as the slogan may change over time.
I feel like there are too many "green" logos out there right now as so many brands attempt to wrap themselves in the popular green/environmental ethos. Being green is not really a big aspect of Jumper Cable.
Given the importance of the slogan in communicating what Industry we're in (marketing), I think the slogan needs to be more prominent.
I like the red better than green. It seems a little too orange/brown. It strikes me that a pure red button in that context might signal stop or alarm. Is there another color or tone that creates some visual interest?
#8 The logo needs to work first and foremost in a horizontal application. The words "Jumper Cable" need to have visual prominence over any visual device.
It feels like there's too much going on in this version with all the different color type. I'm not sure the slogan needs multiple colors either. I still wish the tone in the restart symbol looked more red and less orange/brown. I'd be open to see other color and tone ideas for the restart symbol (other than enviro green).