Stop in for a cup of coffee

There are 2 different models, both are the same jumper but the deluxe one has a smart charger. (both chargers are built in) The smart charger allows you to keep it plugged in constantly without overcharging the internal battery. I might have to make a call tomorrow to make sure. Not too many dollars more but worth it.
When I was a field manager for AT&T, I would buy jump pacs to jump our vans. We had GPS built in and they were active 24/7, and on long weekends the battery would die. Any how, EVERY TIME the first time one was used, the dumb asses would hook it up backwards, of course it would blow the fuse or blow the pac. EVERY TIME!! And these were telephone technicians. Supposed to be smart:BangHead::BangHead: