Phones these days use a lot of power. In fact, most of us need to charge our phone mid-day and at night. That’s where the Primo Cube comes in handy. It’s a tiny square charger that plugs into either a MicroUSB or MiniUSB jack on a phone.
It will work with just about any smartphone other than the iPhone that lacks USB. Could be very convenient and that $40 well worth it if it gives you precious juice.