Experience with Li-Ion Portable Jumpstart packs vs. bulky lead-acid
As I think about the "footprint" of waste, I guess that most of these Li-Ion jump starters are about 1/6 the bulk of the old-school lead acid units (e.g. Schumacher), and about the size of a Ryobi/Dewalt jumbo battery pack (of which last about 5 years, and cost about the same ~