Remember last year, when Energizer debuted its iPhone 4 backpack battery at CTIA? It was actually made by PowerSkin, and it was the less-powerful cousin to the dual (Verizon and AT&T) compatible PowerSkin case just released.
Compared with Energizer’s version, PowerSkin’s new case packs more muscle — at 2000 mAh, a whopping third more power than the 1500 mAh Energizer version, bringing it level with Mophie’s new monster Juice Pack Plus — but lacks the Energizer version’s quick-charge feature. Still, at $80 the case is $20 cheaper than the Mophie, and stacks up nicely on paper.
Of course, the proof is in the pudding; since we love pudding, we’re currently putting the two of them through the Cult of Mac’s grueling Test Gauntlet (along with XtremeMac’s InCharge Mobile for iPhone 4 thrown in for good measure). Reviews coming soon.