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Model Forum / Radio Controlled / Land Models / May 2005Safe voltages for Xmod cars
Hi, I was thinking of adding an extra AAA battery or two in the roof space in my xmod toyota. Out-of-the-box config is 4xAAA - any one tried adding a little extra? Is it likely to give to much to the control circuitry or does it have voltage limiters build in? Cheers squelch41 This is a general response to your question. As I do not have a xmod. I'm a micro rs4 fan. The electronics used should have no problem running up to about 12 Volt, as in general they are designed for it. But as you add more power you will be pushing the motor a bit harder, which in turn will heat up the mosfets more, and will be harder on the brushes too. You'll love the speed!! By running more amperage thru them. 2 batteries should be more than ok. My car comes out of the box 4xAA, tired it once it was too slow, then went to 8xAA. Now I run 7.4 Volt LiPo's. (8.47 final voltage using self built charger) 8.3 is the cut off for many way too safe such as the Triton Charger. Hope that helps. > Hi, > [quoted text clipped - 5 lines] > Cheers > squelch41 > I was thinking of adding an extra AAA battery or two in the roof space > in my xmod toyota. Out-of-the-box config is 4xAAA - any one tried > adding a little extra? Is it likely to give to much to the control > circuitry or does it have voltage limiters build in? THere were people on the various xmods forums running 9v and more, although they weren't shooting for longevity.  Signaturehttp://cbsrmt.mousetrap.net/RMTdb/ CBS Radio Mystery Theater database CBSRMT uploads each day in <news:alt.binaries.sounds.radio.cbsrmt> http://greyhound.mousetrap.net/altus/ our ex-racer greyhound http://www.mousetrap.net/~mouse/cs.html How to get good phone support Yea i also heard of people using 9v also.There is also mosfet mods around if you look.If you cant find any i might be able to dig up a link. What is a mosfet? Thanks > What is a mosfet? > Thanks Try googling for mosfet and you will find this (amongst other things) http://www.irf.com/technical-info/appnotes/mosfet.pdf Metal Oxide Semiconductor Field Effect Transistor Basically they are what control the flow of electricity to the motor. If you up your voltage you will draw more power, or if you put in a larger motor you will do the same. You will be exceeding the limits of the stock mosfets, and will need to add more to control the larger flow of electricity to the motor. Or you will overheat the stock ones, and/or burn them out. But for the 6cell that was being talked about you should be ok, but also at the limit of the stock mosfets. >> What is a mosfet? >> Thanks [quoted text clipped - 3 lines] > > Metal Oxide Semiconductor Field Effect Transistor Here is a link to a mosfet project.(first link)This should also give you some idea.He also explains the tamiya plasma dash motor.Tamiya makes several dash and ultra series motors.They also can add more speed.I am using a tamiya ultra torque in a canned heat mod of mine.This mod had insane power.Its link is at the bottom of this post. http://www.ausmicro.com/topic.asp?TOPIC_ID=2044&FORUM_ID=13&CAT_ID=4&Forum_Title =Mini%2DZ%2C+Mini%2DX%2C+X%2DMods+%2D+Technical&Topic_Title=my+%22Woah+Nelly%21% 22+Turbo%2E%2E%2E%2E http://www.geocities.com/proob4/minimonster.html It is just fine to add a AAA or two i run two on mine and mine has ran just fine for a year and faster!! :) :) SignatureRacN_2003 |
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