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Old 02-04-2007, 12:13 PM   #616
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Quote:
Originally Posted by SlamMan
Thanks for the input, Rick. This is my first "big" race so I appreciate the help. I do run NiMH packs when racing at the local Hobbytown club races so being able to easily switch back and forth would be nice. Would I realistically be able to add weight to the LiPo packs only, make weight and still have a relatively well balanced car? When running NiMH packs do you generally have to add weights to make weight? I run the Novak 13.5/GTB if that helps.
You should be able to add enough weight to the top of the battery and to one side. I prefer to fill the top, and run a lead strip along what will be the inside of the battery when installed in the car. Just make sure the battery is mounted so that the lead will not hit the drive belt. The pack offers enough flexibility in placement so that this will not be a problems.

The BL systems seem to be a bit heavier than brushed counterparts. I add 1 ounce to my proto TC5 when racing 19-turn. other cars like the Tamiya MSX might need more. You will likely have to add some weight.
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Old 02-04-2007, 10:43 PM   #617
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Hey Rick !

Any suggestions bout adding weight to a Ae B-4 with the 3200 ?

Someone I know suggested stopping by a Golf shop and check out their lead tape that they use...
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Old 02-05-2007, 06:40 AM   #618
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Thanks a bunch, Rick. Much appreciated.
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Old 02-05-2007, 11:44 PM   #619
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i just ran the 3200 for the first time this weekend im sold i dont think there is more power but you have to like being able to charge them when ever you want and thats it.
i had to add about 3-31/2 oz of weight to make the buggy handle right because i was also running 4200 to see what the diff. in power would be and all that good stuff
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Old 02-06-2007, 12:02 AM   #620
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Quote:
Originally Posted by tom235
i just ran the 3200 for the first time this weekend im sold i dont think there is more power but you have to like being able to charge them when ever you want and thats it.
I had similar findings I actually got bored running my mabuchi-powered F103GT, and pulled off to find the motor blazing hot!
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Old 02-06-2007, 09:37 AM   #621
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Just got my pack! i'll be using it in a mini-M03 chassis and was wondering because the ends are exposed (hanging out both sides) can i protect the exposed area by using another layer of battery shrink wrap. This would involve encasing the entire pack in plastic shrink wrap and using a hot hair dryer blown on to it. Or is this pack as durable as it looks and no need for extra protection!?
Would doing this also have any heat/venting issues?
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Old 02-06-2007, 09:55 AM   #622
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With the near sub zero temps in parts of the US. Can this damage the 3200? For example the local shop is getting some of these in today. I do not think that UPS uses climate controled storage and delivery trucks that can deal with 32 below freezing. So the risk of freezing is real.
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Old 02-06-2007, 12:04 PM   #623
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Default Lipo Low voltage cut-off modules??

Has anyone out there tried out the "NOvak smart-stop Li-Po Module"?

http://www.shopatron.com/product/pro....19780.0.0.0.0

It looks like a good thing to have to protect your 100$+ Lipo packs from being discharged beyond the point of no return. The 2 cell module has a cut-off at 6.25 volts.

I think I want one, is 6.25 volts a pretty conservative number?

I was looking at alow voltage detector sold by Maxamps.com and their alarm goes off when the battery hits 2.7 volts. I wonder if that is 2.7 per cell, 5.4 per 2 cell pack.

The difference between 6.25 and 5.4 seems possible, but 6.25 compared to 2.7 seems a litle funny.

Can someone enlighten me on this subject? Please forgive my ignorance

Thanks
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Old 02-06-2007, 02:13 PM   #624
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Novak's 6.25v is the spec for 2 cells (3.7v x 2 = 7.4) Most say not to run Lipos lower than 3.0v/cell or 6.0v for a car pack.
Novak's cutoff is on the safe side.
Maxamps has to be saying 2.7v/cell or 5.4/pack which I think is too low.
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Old 02-06-2007, 02:35 PM   #625
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Default Saddle packs

We poor XRay guys that run saddle packs will never be able to use lipos.I have not seen anyone address this issue.


My two cents
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Old 02-06-2007, 03:09 PM   #626
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Quote:
Originally Posted by jackh
We poor XRay guys that run saddle packs will never be able to use lipos.I have not seen anyone address this issue.


My two cents
How about these?

Saddle Packs

at Maxamps

Do they fit?
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Old 02-06-2007, 03:20 PM   #627
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jackh: Look up Xray and see if they can get you some of those stick pack plates they used to carry.
That would open the door to 4800's as well.
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Old 02-06-2007, 03:29 PM   #628
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Quote:
Originally Posted by Sydewynder
How about these?

Saddle Packs

at Maxamps

Do they fit?

Hmmm, I have never seen these cell before. I will have to do more checking into them. Now if they can come up with a 4 cell lipo pack for my CRC 12th scale life would be great.

Thanks
Jack
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Old 02-06-2007, 03:48 PM   #629
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Quote:
Originally Posted by jackh
Hmmm, I have never seen these cell before. I will have to do more checking into them. Now if they can come up with a 4 cell lipo pack for my CRC 12th scale life would be great.

Thanks
Jack
Unfortunately 1 lipo cell is 3.7v and 2 is 7.4v. You're either going to always lose or be called a cheater.
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Old 02-06-2007, 04:07 PM   #630
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Quote:
Originally Posted by shaggys40oz
Has anyone out there tried out the "NOvak smart-stop Li-Po Module"?

http://www.shopatron.com/product/pro....19780.0.0.0.0
This is a good device however remember it does not cut off all voltage just voltage from your motor, so still remember to disconnect your battery as your servos and receiver can still draw power and the on-off swith on many ESC's does not completely cut the circuit.
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