My little travel companion

I have this external battery for quite some time.
The other day I was in the TGV, my smartphone was only 12%. The battery was reloaded so quickly that I vowed to leave a comment.
I feel that my phone is loaded faster than when using its own charger plugged in.
My daughter, who has an iPhone, can also be used, with additional cord that was provided, but when a machine is used with a mini USB plug, there is a real pleasure because it connects directly to the small phone cord retractable battery.
Another very pleasant surprise, almost total charge my phone removes only led four.
Although I've never done this time, I think we should be able easily charge their smartphone at least three times.
There, it became my Beanstalk reassuring little travel companion :)