How badly do you want to have a battery case — with a removable battery — for your Nexus 4? Or, let's ask it another way. How much ugly are you prepared to put in your pocket — assuming you have oversized pockets and they don't turn inside-out out of fright — to use a battery case (again, with a removable battery) for your Nexus 4?
The ZeroLemon Juicer is huge. And it's quite possibly the ugliest accessory we've ever seen for a smartphone.
But, yeah. It brings extra power to your Nexus 4. So what's it worth to ya?