Another Question as I am still confused a bit LOL
Like the above 19.8 volt $$$ and these below are a bit cheaper

This starter I am getting is a 6.1 geared ratio. from 12 to 18 volts.

So I am also looking at the LiFe 4200 MAH @ 30C @ 13.2 volts
and also the LiFe 4200 MAH @ 30 C @ 16.5 volts.
So what Will the diff be between all 3 of these for a days use? or power ?
Would I be just fine with the lesser volts?
Or maybe the better thing to do, is ask what one would you use?

Not sure if I am even asking my question right. [] Sorry.