Will the existing 120 volt charger cable be adequate to use a 220/240 volt power source if a 240 volt "pigtail" adapter plug was created to allow the 120 type then to plug into the 240 receptical? It feels heavy enough to carry the extra amperage. Also does recharging at 120 volts allow a longer life on the battery than recharging with 220/240 volts? I've read something about this but not sure of the complete answer. I think I read somewhere that the Clarity will NOT allow for industrial (level two plus) charging.