Battery charging of mobile phones really takes long and when pushed for time, one has to connect and reconnect one's mobile phone on every stop several time during a day when on move.
But now here is an a amazing mobile USB batter charger that can do the trick in just 15 minutes.

This very handy and light weight batter charger called “Voltissimo” by  Buffalo recharges smart devices very quickly - and in a jiffy.

Voltissimo with 8,000mAH that can fully recharge an iPhone four times on a full charge.