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What's the highest ammount of voltage a bit board can take
Posted: Fri Apr 10, 2009 3:06 pm
by eddy
What's the highest ammount of voltage a bit board can take? I would like to know because i have an Idea............................
Re: What's the highest ammount of voltage a bit board can take
Posted: Fri Apr 10, 2009 5:15 pm
by PimpFloyd
Someone else more experienced may need to chime in here but I think you would be pushing it after 5 volts...if you're thinking of a mega power source for your bit you would probably need to FET mod as well.
Searching tri-cell or quad cell may lead you to post about board regulation and board limitations volatge-wise - also may depend on the particular bit board you are using.
PF
Re: What's the highest ammount of voltage a bit board can take
Posted: Fri Apr 10, 2009 5:51 pm
by sidewinder
That sounds about right, I know we have had a few successful tri-cell mods, I don't know of any quad-cell success stories. Crazydave had a 4.8v bit clone that was way, way overpowered.
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Re: What's the highest ammount of voltage a bit board can take
Posted: Fri Apr 10, 2009 6:14 pm
by crazydave
The FETs I use are rated at 20v and 4.2A.
Re: What's the highest ammount of voltage a bit board can take
Posted: Fri Apr 10, 2009 9:19 pm
by eddy
4.8v is overpowered? I was looking for 8-9v
. If I use those FETs will the whole board take 20v or just the FETs? Don't worry, I love to overpower everything.
Re: What's the highest ammount of voltage a bit board can take
Posted: Sat Apr 11, 2009 11:46 am
by crazydave
eddy wrote:4.8v is overpowered? I was looking for 8-9v
. If I use those FETs will the whole board take 20v or just the FETs? Don't worry, I love to overpower everything.
No don't do that. I was being a smart ass, since the question was basically answered. That is the max the FETs can take, there are other components on the board. Besides that being the max the FETs can take, they rate them at 5v for normal operation.
Years ago a guy at TinyRC gradually pumped more juice into the board, and it warmed at 7, and fried at 9. He felt you could get away with 7.2, I wouldn't recommend more than 6 max, but at this scale 4.8 is ridiculous, if you keep the power to weight ratio down with smaller cells, such as the Zip Zap batteries from the SE, Cars, and Transformer ones, or a 3.7 lipo stamp cell, such as you'd find in those tiny helicopters.
Re: What's the highest ammount of voltage a bit board can take
Posted: Sat Apr 11, 2009 1:11 pm
by eddy
Don't worry. I will find a way to make 9v. I know about P/W thats why I plan on using quad celled 3.7v stamp LiPos. Kinda off topic but have you seen the HPI Savage flux Brushless? What about a micro one of those huh?