sidewinder shutting down

[CRAWLER-DAD]

OK..sent a email to castle thru support and waiting..but thought i would see if anybody has had this problem..sorry impatient.

ran sidewinder with 7.4 lipo with no problem with 55 novak 87-11 gearing
now i programed(changed the lipo cut off to 9 volt) and now i barely get 2 minutes before it shuts down,but i turn it off and it runs for about 2 minutes and shuts off again!!
touched the speed control,its hot but not burning hot..just incase u need the info i have a hitec 645 servo....
OH i just bought the battery today prodigy 11.1 20c..

HELP PLEASE !!!!!!

[allgm1]

are you using an external BEC ? If not, you will be!!!!

[jetboat]

I have a similar problem, I changed the programing from 1.17 to 1.16 and it worked for a couple months then started again. Changed it 1.20 and it worked for a couple hrs, then back to it. I have to send it in. (BEC, JR8711, dual 55t, 1500mah 25c 3s)

[CRAWLER-DAD]

not using a bec but do have one ready!!

What is 1.17-1.16---1.20??

what im guessing is because of the higher voltage its producing more amp draw then the 7.4 and the known weak internal bec is causing the sidewinder to shut down from a spike of amperage

I will try the external bec and see what happens..thanks for the advice

[Alex.G]

i think we should add a sticky thread: use BEC with ESC!!!

[bob1961]

Originally Posted by CRAWLER-DAD

not using a bec but do have one ready!!

What is 1.17-1.16---1.20??

i'm guessing that is the CC software version, i just downloaded the 1.20 version from 1.17....i have CC sidewinder, BEC and have had no problems at all "SO FAR" ....i just un-pluged the red wire from the ESC plug and have been having no problems..............bob

....

[Speedracer19]

Originally Posted by CRAWLER-DAD

sidewinder with 7.4 lipo with no problem with 55 novak 87-11 gearing
now i programed(changed the lipo cut off to 9 volt) and now i barely get 2 minutes before it shuts down,but i turn it off and it runs for about 2 minutes and shuts off again!!

I think that you have the li-po cut-off voltage changed to high. If your using a 2S li-po it should be 3V's per cell (based on a 7.4V it should be 2S) the cut-off should be set at 6V's. If it is a 3S(11.1V's) it would be set at 9V's. It may be that the battery pulls down to 9V's when you run & after it sit's the voltage comes back up & the speedo works until the voltage drops down past 9V's

[CRAWLER-DAD]

quote:
I think that you have the li-po cut-off voltage changed to high. If your using a 2S li-po it should be 3V's per cell (based on a 7.4V it should be 2S) the cut-off should be set at 6V's. If it is a 3S(11.1V's) it would be set at 9V's. It may be that the battery pulls down to 9V's when you run & after it sit's the voltage comes back up & the speedo works until the voltage drops down past 9V's

I thought the same thing but it was a fresh charged battery and i beleive it will benefit connecting the bec..thanks all for the help
I have the new version and i did set cut off to 9.0

[Mic]

Put that BEC in. The higher volts make the inernal BEC burn off more volts in the form of heat to get the 11.1 down to 6 volts.

[CRAWLER-DAD]

OK. got the BEC on and went and crawled in the back yard....FIXED So thanks for all the help and i did post up what the CC support LED index for all to use...
now back to the back yard and kill another battery