Also i bought a 8.4 volt NIMH battery pack today and it has a "Deans Ultra" connection, do i need a special charge for those or will any old NiMH charger work?
I agree with zamboniman60's suggestion of using a plugable power supply . . . anyway, 8.4V is a little odd, but any NiMH charger that says it can do 8.4V will work fine. but for the connector . . .
the Deans Ultra connector is really odd looking
you can always solder some wires on to it, or cut it off and change the adaptor . . .
and to hook it up to the BOE, from parralax should i just take two jumper wires and connect it to the 9v battery spot? sorry for all the questions.
you mean connect the 8.4V battery to the power connection labeled 9V on the boe bot? if so, then yes.
again, I would just get a power supply you can plug into the wall . . .