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Old 08-29-2009, 10:38 PM   #1
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Default LRP TC lipo cut off?

I have tried to search the forums for this answer but I cant seem to find out if the LRP speed controls have lipo cut off. Please help!
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Old 08-29-2009, 10:51 PM   #2
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I'm sure it depends on the model. Which one are you looking at?
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Old 08-30-2009, 12:17 AM   #3
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The TC spec and the A.I. pro reverse.
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Old 08-30-2009, 12:39 AM   #4
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The TC spec I'm sure has a LIPO cut off, it one of LRPs top ESCs. The Ai I'm not sure about. It says it's lipo compatable, so I'd say it's a safe bet to say it has a cut off as well.
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Old 08-30-2009, 09:15 AM   #5
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They do, but they aren't effective at protecting lipos.
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Old 08-30-2009, 09:55 AM   #6
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Quote:
Originally Posted by adamge View Post
They do, but they aren't effective at protecting lipos.
Do you know why? I have the same problem with my SXX TC Spec, eversince I m using it my LiPo swells, I m suspecting the esc did not cut it off, my car just slows down to a crawl but the esc did not cut it off. I posted this q on SXX thread and yet to get a reply from that guy Burito (LRP).
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Old 08-30-2009, 10:48 AM   #7
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There are only two possibilities:
1. The internal code compares voltage to a cutoff voltage setpoint that is too low.
2. When it sees the voltage below the cutoff voltage setpoint, it doesn't actually cut off throttle in a way that the driver notices.
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Old 08-30-2009, 12:39 PM   #8
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Quote:
Originally Posted by adamge View Post
There are only two possibilities:
1. The internal code compares voltage to a cutoff voltage setpoint that is too low.
2. When it sees the voltage below the cutoff voltage setpoint, it doesn't actually cut off throttle in a way that the driver notices.
I think you are right, the other day i put my Lipo on my charger after my run and I see it read 5.75V. On my other esc I set the cut off at 3.2v per cell. I ve been told the SXX would cut off around 6v region but in reality it goes well below it. Anyhow performance wise the SXX is very good. For precautionary I just don't run my car beyond 5 mins right know, be it continuous or have a stop during the run.
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