nah, I just didn't charge it before we left.
But I am putting one of these on the front of the juicebox (and a 120 outlet, that turns off when it is charging):
GE 60-Amp 240-Volt Non-Fuse Metallic AC Disconnect-TFN60RCP - The Home Depot
And this might be handy for making just enough space in the panel (make sure the circuits you combine are already on the same pole)
Square D QO 2-20 Amp Single-Pole Tandem Circuit Breaker-QO2020C - The Home Depot
still futzing with the juicebox kit. Will add one of these eventually:
http://www.ebay.com/itm/181333015622...%3AMEBIDX%3AIT