This little blue cell phone battery back up holds 6,000 mAh which is certainly useful when on an airplane and trying desperately to kill three tiny worms with one super sheep. It's even more useful, according to the manufacturer, when stranded in the middle of nowhere with a dead car battery.
The manufacturer of the Juno Power with JUMPR claims that it's powerful enough to jump start almost all four and six cylinder engines, but then it quickly clarifies that this is a lie. It's strong enough to charge the battery enough for these cars to start according to the website which says it "is capable of jumping a completely dead car battery in minutes."
This is still a pretty cool safety net.
[via Juno Power]