They are not cheap they run about $80.00 dollars. All was well up to last week when my Juice Pack Air that is less than 6 months old stopped taking a charge. It was good in the morning bad in the evening. I had not dropped the phone or had anything similar happen to it.
I use the Juice Pack Air on a daily basis as I am always killing the battery to my phone after 8-10 hours our usage. I was in Best Buy this weekend and grabbed a new charger and for a couple of days it worked as advertised.
Yesterday I started getting error messages on my iPhone that the device attached to it, which was the Mophie Juice Pack Air was not compatible and the phone refused to take a charge from the new Juice Pack Air.
My plan is to take the new unit back to Best Buy and exchange it. But honestly I have lost confidence in the brand. Doing a Google search I can tell that I am not alone and a lot of people are having the same issues I am.
The folks at Apple need to take a closer look at this companies quality control. In the mean time I am telling all my geeky friends, buyer beware to existing owners keep the sales receipt handy for return of your unit. Sadly I am left with a brick because I cannot find the original receipt for the first unit.