6v charging for a dual-bat bit? (say that drunk!)

[ph2t]

Guys,

if you are to charge a dual bat modded bit (2.4V on car) with a 6V supply (4*AA bats) won't you blow the board?

When first charging the car, the batteries are flat. The 6V supply pretty much sees this as a low resistance circuit (almost short circuit?) therefore the voltage across the changing terminals would be low. But when the battery is charged (after a couple of minutes going by info I've seen here) it is seen as almost an open circuit.

Wouldn't this mean that then there is 6V going across the terminals of the car, the very same terminals that go to the circuit board. Wouldn't this blow the RX2 IC? I've heard that the max voltage that the circuit board can handle is around 5V......

Please correct me if I'm wrong...

Thanks,

ph2t.