RCCrawler Forums

McTwist · 03-14-2011, 10:24 AM

I just put a stock MRC ESC in my kids rig this weekend. Does any one know it the stock ESC has a Lipo cut off? Cannot find any info on Losi's website.

I put in my old Axial rig with a 50t 540 motor and ran it around on 2 cells. Wondering if I could put 3 cells to if it would handle it.

Worst case this rig is for a 6 year old and I guess 2 cells will be ok just need to know if it will cut off before it jacks the battery.

Jslick · 03-14-2011, 10:39 AM

no lipo cut off, I would not run it with a 3s.

Slaughter · 03-14-2011, 10:39 AM

It doesn't but it is safe to run a 2s as long as you stop when notice a drop in power or wheel speed. I have been running mine new MRC on the Losi lipo for a week with no trouble. If you want to be safe, then get a Novak Smart Stop.

ped453 · 03-14-2011, 11:11 AM

no lipo cut-off, X2 on the Novak smart stop and 3s will make the magic smoke appear instantly

mytjsux · 03-14-2011, 11:44 AM

Quote:

Originally Posted by ped453

3s will make the magic smoke appear instantly

this is no lie and smoke (even in magical form) is not a good thing trust me lol

McTwist · 03-14-2011, 01:08 PM

Thanks guys, all good info for sure.
I'll start looking for a used Mini Mamba or Sidewinder.

I thought for sure I fried the ESC and receiver yesterdays on a little test drive in the back yard, I did a back flip off some rocks and into the Koi pond. I let the RX and ESC dry out over night on top of a heating pad. Plugged it all in this morning and it all works fine.

tim the toolman · 03-15-2011, 01:45 PM

I'll stick up for the stock esc for a minute. I've just had the stock esc for a couple years of abuse now, it's always worked with no problems. It even runs my 5955 servo with no problems! I wish it had a lipo cutoff, I always worry a little about that. It's not a big problem I usually run for 20 minutes or so and my 1100 mah lipo still has a half charge more or less.

Can I hijack for a minute-anyone have a link for a smart stop or something similar for a good price?

Slaughter · 03-15-2011, 08:35 PM

Here is the 2S version. If you run 3S you need part# 5472

http://www.rcplanet.com/Novak_Smart_..._p/nvk5470.htm

Quote:

Originally Posted by tim the toolman

I'll stick up for the stock esc for a minute. I've just had the stock esc for a couple years of abuse now, it's always worked with no problems. It even runs my 5955 servo with no problems! I wish it had a lipo cutoff, I always worry a little about that. It's not a big problem I usually run for 20 minutes or so and my 1100 mah lipo still has a half charge more or less.

Can I hijack for a minute-anyone have a link for a smart stop or something similar for a good price?

tim the toolman · 03-15-2011, 09:18 PM

Thanks slaughter!

I suppose I should order one of those

Frankenwheely · 03-16-2011, 12:45 AM

Just to add to this tread. Thanks for the info. I have heard whispers from friends about this set up, now it sealed the deal. Once agian thanks. Now I won't kill my lipos.

03-14-2011, 10:24 AM	#1
McTwist Rock Crawler Join Date: Nov 2008 Location: The Lone Star State Posts: 722	Stock MRC ESC question I just put a stock MRC ESC in my kids rig this weekend. Does any one know it the stock ESC has a Lipo cut off? Cannot find any info on Losi's website. I put in my old Axial rig with a 50t 540 motor and ran it around on 2 cells. Wondering if I could put 3 cells to if it would handle it. Worst case this rig is for a 6 year old and I guess 2 cells will be ok just need to know if it will cut off before it jacks the battery.

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03-14-2011, 10:39 AM	#2
Jslick I wanna be Dave Join Date: May 2010 Location: Stowe Posts: 3,987	no lipo cut off, I would not run it with a 3s.

03-14-2011, 10:39 AM	#3
Slaughter Quarry Creeper Join Date: Feb 2011 Location: Austin Posts: 414	It doesn't but it is safe to run a 2s as long as you stop when notice a drop in power or wheel speed. I have been running mine new MRC on the Losi lipo for a week with no trouble. If you want to be safe, then get a Novak Smart Stop.

03-14-2011, 11:11 AM	#4
ped453 Rock Crawler Join Date: May 2009 Location: 354 Posts: 670	no lipo cut-off, X2 on the Novak smart stop and 3s will make the magic smoke appear instantly

03-14-2011, 01:08 PM	#6
McTwist Rock Crawler Join Date: Nov 2008 Location: The Lone Star State Posts: 722	Thanks guys, all good info for sure. I'll start looking for a used Mini Mamba or Sidewinder. I thought for sure I fried the ESC and receiver yesterdays on a little test drive in the back yard, I did a back flip off some rocks and into the Koi pond. I let the RX and ESC dry out over night on top of a heating pad. Plugged it all in this morning and it all works fine.

03-15-2011, 01:45 PM	#7
tim the toolman Quarry Creeper Join Date: Aug 2007 Location: Winnemucca Posts: 428	I'll stick up for the stock esc for a minute. I've just had the stock esc for a couple years of abuse now, it's always worked with no problems. It even runs my 5955 servo with no problems! I wish it had a lipo cutoff, I always worry a little about that. It's not a big problem I usually run for 20 minutes or so and my 1100 mah lipo still has a half charge more or less. Can I hijack for a minute-anyone have a link for a smart stop or something similar for a good price?

03-15-2011, 09:18 PM	#9
tim the toolman Quarry Creeper Join Date: Aug 2007 Location: Winnemucca Posts: 428	Thanks slaughter! I suppose I should order one of those

03-16-2011, 12:45 AM	#10
Frankenwheely D-Wray 4 Prez! Join Date: Aug 2008 Location: Shh Posts: 2,560	Just to add to this tread. Thanks for the info. I have heard whispers from friends about this set up, now it sealed the deal. Once agian thanks. Now I won't kill my lipos.

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