Check out the NEWLY REDESIGNED Micro-Start XP-3 PPS (Personal Power Supply). The XP-3 is one of the smallest Jump Starter PPS units. It easily fits in your pocket or stows in your saddlebag, so you can have back-up power anywhere you go. Never worry about coming back to a dead car battery, or USB devices running low on power. The XP-3 solves it all. It can be conveniently recharged itself via Micro-USB tip.
The Micro-Start XP-3 PPS (Personal Power Supply) is so small it fits in your pocket yet so powerful it starts Cars, Trucks, Motorcycles, and other Powersports Vehicles. It can Charge & Power two USB 5V devices at once. For extra capacity and additional power ports, check out the XP-1 or XP-10.