Judging by the cable used in this mock-up 
http://www.gm-volt.com/2007/12/15/production-volt-to-have-left-and-right-charging-ports/
I know that the present small battery pack is intended to recharge at something like 120V 10 amps, but it would seem sensible to future-proof the design of the internal cables and bodywork sockets for a higher energy density battery.
'Spose we should be thankful that they're not still using the inductive paddle.
http://www.gm-volt.com/2007/12/15/production-volt-to-have-left-and-right-charging-ports/
I know that the present small battery pack is intended to recharge at something like 120V 10 amps, but it would seem sensible to future-proof the design of the internal cables and bodywork sockets for a higher energy density battery.
'Spose we should be thankful that they're not still using the inductive paddle.
