I picked up 2 of the MicroStart XP3, the vanilla version.
Charge up, it came almost fully charged, then went looking for test dummies.
GSX-R 1000 at a friends shop with a dodgy battery, disconnect battery, start at first attempt.
Hmmm, what next. Aha, an F-150 parked nearby, thought about all the electronic gizmos that need backup power and moved on.
Battery terminal off, clamp on the XP3, start....
Crank, crank, crankkkkkkk, vroom vroooooooom....
Leads were very hot
Battery pack hot, still able to hold on though.
I like the way the clamps are protected by plastic, you do not want a short circuit on a Li-Ion battery or whatever new wave tech the batteries are made of.
The motorcycle shop is ordering 5 units.