Clore Automotive JNC660 Jump-N-Carry 1,700 Peak Amp 12-Volt Jump Starter for $99.95 shipped.  Here is a screenshot for your reference.  It is worth noting that at the time of this writing, 160 out of 167 user reviews have given it 4/5 and 5/5 ratings.  More information can be found here.  Most places have it for more than $150.