If a rc receiver has a operational voltage of 4.8-6v would my 8.4v battery work with it? could it fry?i dont get why most rc receivers have a small voltage rating that are lower than the batteries have. I am looking at 2.4ghz transmitters and receivers and yes i know about the xbees.
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"i dont get why most rc receivers have a small voltage rating that are lower than the batteries have."
That is historical / backwards compatibility. Way back when rocks were new and I was roughly your age, R/C gear came with a little battery box that held 4 "AA" cells. "Regular" (carbon zinc or alkaline) cells are 1.5v; rechargeable nicad cells are 1.2v nominal.
4 x 1.5 = 6v
4 x 1.2 = 4.8v
Yeah, then we got NiMH, and LiPo, etc.
Moral of this fable: be careful what standards you create; they may long outlive you. :)
Just going to thrown in another solution I was considering encase my ESC did not put out a safe 5-6 volts. Its also possible to use a 7805 voltage regulator. Or maybe there is a problem with doing this... Any one feel to point out a problem with doing this. Though it sounds as if its not necessary with modern speed controllers already performing this task.
RC receivers are designed to work with rechargeable batteries or an ESC/BEC which usually put out 5 to 5.2 volts. Some of the new 2.4GHz receiver can work up to 9 volts. It all depends on the make and model of the receiver. Your 8.4 volt battery will definitely fry an RC receiver designed to work between 5 - 6 volts.
Replies
"i dont get why most rc receivers have a small voltage rating that are lower than the batteries have."
That is historical / backwards compatibility. Way back when rocks were new and I was roughly your age, R/C gear came with a little battery box that held 4 "AA" cells. "Regular" (carbon zinc or alkaline) cells are 1.5v; rechargeable nicad cells are 1.2v nominal.
4 x 1.5 = 6v
4 x 1.2 = 4.8v
Yeah, then we got NiMH, and LiPo, etc.
Moral of this fable: be careful what standards you create; they may long outlive you. :)
RC receivers are designed to work with rechargeable batteries or an ESC/BEC which usually put out 5 to 5.2 volts. Some of the new 2.4GHz receiver can work up to 9 volts. It all depends on the make and model of the receiver. Your 8.4 volt battery will definitely fry an RC receiver designed to work between 5 - 6 volts.
Regards,
TCIII