Portable booster pack
 

It’s been -33°F for the last three days and this little unit has come in very handy starting the family and neighbors vehicles with less than 100% pristine batteries. Since I bought it and initially charged it, I have used it six times on the same charge. Very impressed.

6 times = very impressive indeed, for the footprint and cost of that thing.

Those things are awesome. My son's battery was just about totally dead and that started it

I keep one in both my cars and my motorcycle. Life savers!

Just picked one up (GB45). Temps around here are below zero and it seemed like a good investment.