not worth it, it has some nice application ideas, and i only skimmed through the page but unless they are eneloop they are not good enough, and if they are then they just cost too much
It looks like they’re using 2/3 AA cells for the “batthead”. It isn’t hard to match NiMH cells with a good charger. Not sure about mixing an unknown 2/3 AA cell with higher capacity eneloop AA though.
The idea is nice, but it's really expensive not available outside the CONUS, unknown capacity (I will ask this the developer) and the $137.000 goal is hard to take.