Top positive review
9 people found this helpful
Emergency Power Pack = It Works
on August 8, 2012
I was surprised how small the item turned out to be.
It did fit (work with) my Droid 4 phone.
Supposedly, it works with a bunch of other plug compatible devices.
I wouldn't know - don't have any.
It's more than just batteries and/or batteries and a diode.
This thing has some sort of charge pump in it.
It knows when to stop.
It leaves the phone at 100% charge.
You can charge the phone while re-charging the Power Pack.
When everything reaches 100%, they each shut off.
I can't ask for more than that.