The BoostTurbine 4000 sounds like something out of a surreal Bizarro world where technophiles are simultaneously Luddites.
It’s a battery brick that Eton stuck a hand crank onto; should the 4000 mAh battery ever run dry, a minute of cranking will bring an iPhone flickering back to life with enough juice for a a quick distress call or a few texts.
This is not the first cranky battery from Eton; the BoostTurbine 4000 doubles the capacity of its predecessor, the 2000.
Eton also unveiled two other batteries today, the Boost 8400 and the Boost 4200. As you may have guessed, the Boost 8400 packs, at 8400 mAh, twice the capacity of the Boost 4200. All three batteries are equipped with iPad-charging 2.1 amp USB output ports.
No word on prices yet, but the trio should ship this fall.