i need help plzz
01-03-2009, 09:36 AM
#2
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RE: i need help plzz
Aer you using the Tamiya supplied ESC and motor? If do not think LiPo packs would work, but I think you could use NiMH batteries. They have 4200 Mah NiMH assembled packs you could purchase for your car.
By the way, I like the body! Greaty work!
By the way, I like the body! Greaty work!
01-03-2009, 12:05 PM
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RE: i need help plzz
Of course lipo packs would work.... they are not magic, the esc doesn't care whether you use lipo, nicad or nimh as long as you're in the voltage range it operates on and has enough amps.
A lot of people seem to have the misconception that you can't use a lipo on a brushed esc or that you can only use a lipo on brushless... this is not the case at all, they are just batteries.
A 6 cell nimh has 7.2v nominal charge, the 2S lipo has 7.4v nominal. Considering most brushed escs will handle up to 8 cell nimh's, which are 9.6v nominal, why would they not be able to handle a 7.4v lipo?
The only thing to keep in mind is that the newer escs (almost all brushless) have lipo cut offs built in. I'm sure a new brushed esc developed today would also have a lipo cut off. So if you use a lipo with an older esc, regardless of brushed or brushless, make sure to use a lipo cutoff or keep track of your runtime vs. voltage to prevent over discharge.
If you're buying a new battery, regardless of type, get something a minimum of 3600mah.
A lot of people seem to have the misconception that you can't use a lipo on a brushed esc or that you can only use a lipo on brushless... this is not the case at all, they are just batteries.
A 6 cell nimh has 7.2v nominal charge, the 2S lipo has 7.4v nominal. Considering most brushed escs will handle up to 8 cell nimh's, which are 9.6v nominal, why would they not be able to handle a 7.4v lipo?
The only thing to keep in mind is that the newer escs (almost all brushless) have lipo cut offs built in. I'm sure a new brushed esc developed today would also have a lipo cut off. So if you use a lipo with an older esc, regardless of brushed or brushless, make sure to use a lipo cutoff or keep track of your runtime vs. voltage to prevent over discharge.
If you're buying a new battery, regardless of type, get something a minimum of 3600mah.
01-03-2009, 06:37 PM
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RE: i need help plzz
Oh wow, Druss to the rescue again! I did not know that about Brushed ESCs. The people at the local indoor track were saying to stick with Brushless since they can handle LiPo better than brushed ESCs.
And you are right about ESCs now that I think about it. I have this unopened LRP Sphere ESC sitting here that can handle 9.6v, which is 2.2v more than a LiPo.
Where do you think you could get these voltage cut-off thingamabobs?
And you are right about ESCs now that I think about it. I have this unopened LRP Sphere ESC sitting here that can handle 9.6v, which is 2.2v more than a LiPo.
Where do you think you could get these voltage cut-off thingamabobs?
01-03-2009, 07:51 PM
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RE: i need help plzz
idk, but druss is right. but remember that if u are buying lipo, unless u upgrade the esc, a 3 cell would fry it. remember to stick to 2 cell.
01-04-2009, 12:16 AM
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RE: i need help plzz
ORIGINAL: nurch
Oh wow, Druss to the rescue again! I did not know that about Brushed ESCs. The people at the local indoor track were saying to stick with Brushless since they can handle LiPo better than brushed ESCs.
And you are right about ESCs now that I think about it. I have this unopened LRP Sphere ESC sitting here that can handle 9.6v, which is 2.2v more than a LiPo.
Where do you think you could get these voltage cut-off thingamabobs?
Oh wow, Druss to the rescue again! I did not know that about Brushed ESCs. The people at the local indoor track were saying to stick with Brushless since they can handle LiPo better than brushed ESCs.
And you are right about ESCs now that I think about it. I have this unopened LRP Sphere ESC sitting here that can handle 9.6v, which is 2.2v more than a LiPo.
Where do you think you could get these voltage cut-off thingamabobs?
Here's one, http://www3.towerhobbies.com/cgi-bin...?&I=LXPGM8&P=M or do a search for liposhield.
