Bought one last time Woot had them. Worked great at first, but now I have to charge the back and the phone separately. Saving up for a new Mophie.
That’s why I’m holding out hope for the uNu DX for the iPhone 4/4s coming back. For $19.99 here, those were worthwhile, given the lifespan of the uNu battery. The Exera is twice the money upfront and you wouldn’t see a price break until you’re well into your fifth battery.
Mophie cases seem to handle more recharges before failing.
“You didn’t by an iPhone so you could have an extremely expensive paperweight”
It’s buy, not by. 
I’ve had nothing but good luck with the 11000 mah battery when I bought it last time.
Charges devices very fast and holds a charge for a very long time. Worth the $50 for a high capacity battery.
I liked Unu battery case I got ok, until part of the case stopped holding on right. I emailed customer service about a replacement piece, but no response. I’m wary of buying more from them.
So the “uNu PB-01-5000BS Enerpak Tube Flash 5000mAh Battery Pack for iPhones, iPads, iPods & Other Smartphones” is NOT the one with the flashlight that uNu sells for $59.95?