Quote:
Originally posted by funkymonkey
If it pumps 3V to the RX chip, what about when you have dual or triple cell? Does it regulate it to 3V or will it keep doubling? Cos surely this would mean a triple cell would kill the RX2C, yet this doesnt seem to happen.
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It's a doubler when used "as intended". What seems to happen is that putting a 2nd cell on boosts the voltage a little: e.g. 2.97 to 3.1 v. It doesn't get too high for the chip, which is probably the reason why everyone is getting away with sticking more and more cells on
Motor life :- I've seen 100 hours quoted, but I think that's from misreading the manufacturer's test spec. What they say is that the motor lifetime test is 100 hours. After that, the motor must still perform within the specs. This means it could die at 101 hours, as a sudden failure, or it could go on to 200 hours, degrading slightly ... before failing even later.
They do say this is for running the motor "the right way" (brush wear etc.), this is with the shaft turning clockwise as seen end on. This means that (as bits have a 2 stage gear reduction) the rear wheel turns clockwise for correct running, which corresponds with reverse
So there is some life reduction there, but are you really worried about that when you've got 2 or more cells powering it !
Mike.