Teu-101bk Lipo Question

[Euphoria]

I converted my TT-01 over to LiPo the other day. I changed the TEU-101BK's plug to deans and wired in a Novak Smart Stop. Everything was running perfectly until the Smart Stop kicked in (it did kick in when it should to protect the LiPo). The power cut to the motor as normal but then began to give it burst power... it would shoot off, stop, shoot off, stop, etc. I could still steer no problem but had no control over the power. It makes stopping it to unplug a bit of a pain.

Anyone have an ideas?

A few pictures of my TT-01.

[cubsfan2009]

Take your finger off the throttle! Just kidding, but when the lipo cutoff on my Sidewinder esc kicks in my car will do the same thing if I continue to try to drive. I can go sloooow to get back to myself but if I try any speed it will rocket forward for a second then stop again and again. Sounds like the Smart Stop is working properly, but your esc or receiver is getting confused and trying to go full throttle. One thing you could try would be to turn off your transmitter to see if this makes a difference. I know this is against normal shutoff procedure, but it's not going to run away so give it a try.

Wish I could be more help but I have no experience with the Smart stop, however it sounds like it's working correctly.

[WillyChang]

it may have something to do with how the TEU101BK needs to power the RX thru the separate red plug

most other ESCs feed the power to RX thru a single signal cable (which goes thru the smartstop)

[Euphoria]

It's most odd, I tried turning off my TX and instead of the normal beeps the ESC puts out, the car shot off full whack again... only this time I couldn't control it Didn't collide with anything fortunately! I've put on the Novak Glitch Buster to see if that helps anything at all.

As said above, it could be the way things are powered.

[TA-Mark]

Using Li-Po with a TEU-101BK is forcing the receiver to run on 7.4v. Most receivers are 4.8v to 6.0v rated. When I overpower one of my Hi-Tec receivers it carries on stupid like this.

[94eg!]

Using Li-Po with a TEU-101BK is forcing the receiver to run on 7.4v. Most receivers are 4.8v to 6.0v rated. When I overpower one of my Hi-Tec receivers it carries on stupid like this.

But the red plug comming out of the 101BK has the BEC circuitry on it that puts out 6v. Not the full pack voltage. Why would the .2v extra from a Lipo make any difference (over 7.2v nickle)?

[TA-Mark]

But the red plug comming out of the 101BK has the BEC circuitry on it that puts out 6v. Not the full pack voltage. Why would the .2v extra from a Lipo make any difference (over 7.2v nickle)?

This same receiver carries on stupid with a 7.2v too. With another ESC the receiver is fine on 6.0v.

[terry.sc]

The TEU101-BK is the only ESC that has no BEC circuitry built in, the red plug coming out is directly connected to the battery input and gives out the battery voltage. Running a receiver on 7.2v is just about the limit they can handle, several receivers won't work with the TEU101-BK because it gives out more than 6v.

[cubsfan2009]

Did I miss something here? I read that it works fine until the Smart Stop kicks in. At the lipo cutoff he would be down to almost 6.0v anyway so the receiver should be fine without BEC. Besides if the receiver has BEC then feeding it 7.4v would be fine regardless if the ESC has BEC.

Seems like there is a conflict between the Smart Stop and the TEU or receiver that is causing a glitch. Considering the cheap nature of the TEU I would guess this is the problem and is going full throttle when the Smart Stop is kicking in for some reason. There may be nothing you could do about it other than getting a new ESC. Once you get a feel for the lipo you will be able to notice a slight power falloff just before the Smart Stop kicks in and plan ahead to stop before it cuts power.

[Euphoria]

Only ran it twice now so I'll keep working on it. The Glitch Buster only managed to decrease my run time by quite a bit and shorten the radio range. It has to be the ESC as I had no problems with other ESC's I've ran the Smart Stop on.

Thanks for the replies so far

[TA-Mark]

Try running it for a battery on a 7.2v Ni-MH with the Glitch Buster and Smart Stop removed from the system. This will atleast rule out whether there is a conflict between the receiver and ESC.

[WillyChang]

as a lastditch test... could be worth flicking your CH2 channel reverse switch and reprogramming the ESC

[Euphoria]

No problems at all on a normal 7.2v pack.

I'll try reprogramming the ESC, good idea

[Lonestar]

The TEU101-BK is the only ESC that has no BEC circuitry built in, the red plug coming out is directly connected to the battery input and gives out the battery voltage.

Terry, can you confirm I read this properly? The red plug is cranking out exactly whatever tension is coming out of the battery output plug?

Paul

[terry.sc]

Yes, 5 can confirm that the TEU101-BK doesn't have a built in BEC and is the only ESC that sends the full battery voltage to the receiver. The voltage on the red plug is the same as the main battery. Ridiculous really considering how inexpensive adding a suitable voltage regulator would be.