Black Jack Esc shutdown

[Dragonturbo3]

I had 5 brand new black jacks out of the box doing the same thing this weekend. I plugged the programming card into each one changing the voltage cutoff to low and problem solved. We keep the card at the local hobby shop now and pre-program them before they leave the shop.

[kburrows]

Did it work under load

So did it?

Found the problem with the ESC shutting down, keep your finger on the throttle of your radio, while pluging in Batteries, release trigger after esc makes 3 sets of beeps last one should be voltage count off batteries, then it just keeps repeating same tones.

[dendrobate]

I had 5 brand new black jacks out of the box doing the same thing this weekend. I plugged the programming card into each one changing the voltage cutoff to low and problem solved. We keep the card at the local hobby shop now and pre-program them before they leave the shop.

So with a pair of venom 4200 6 cell packs ,if I get the programmer this should solve the cut off issue?
Thanks

[Wakesurfer]

Took my boat out for its second run this evening. Got the Spektrum in it, and throttle resopnse was a lot smoother up to about 3/4 throttle. And then it shut down. Hope that programming card is at the LHS Wednesday. Why even put a LVC on a Nimh setting?

[Jeepers]

because even NiMh shouldnt be drained to far.

[dendrobate]

What is the max battery that can be used with a stock BJ?

[dendrobate]

Anyone recommend the ESC programmer settings when using with a pair of venom 4200 6 cell pack ?
Thanks

[Wakesurfer]

because even NiMh shouldnt be drained to far.

I suppose some people may not realize that when the RC slows down the batteries are running low and need to be recharged. But for the rest of us, I think a LVC that comes from the factory set to high is pretty rediculous. If people don't have enough common sense to stop when the batteries are starting to dump they are probably prime candidates for a Darwin Award and should stick to text messaging while driving instead of getting into a hobby like RC. OK, I'll stop ranting now. My programing card will be in Wednesday after work. Time to go LiPo and see what this boat can really do.

[ETOWNE]

If people don't have enough common sense to stop when the batteries are starting to dump they are probably prime candidates for a Darwin Award and should stick to text messaging while driving instead of getting into a hobby like RC.

Dude that's really funny. I have been using my BJ w/ 2 Orion 4800 Lipos w/o the program card. When the boat starts slowing down, if you can't tell this revert to wakesurfers comment,bring it in. I love these batteries, I have smc IB4200 race packs,they lose cells nonstop. Those of you that are having problems w/ Nimh,run a volt meter across each cell. Dead packs should show 1.2o volts on each cell. Charged cell should be in the 1.5 to 1.6 range.Hope this helpss some of you.

[dendrobate]

Dude that's really funny. I have been using my BJ w/ 2 Orion 4800 Lipos w/o the program card. When the boat starts slowing down, if you can't tell this revert to wakesurfers comment,bring it in. I love these batteries, I have smc IB4200 race packs,they lose cells nonstop. Those of you that are having problems w/ Nimh,run a volt meter across each cell. Dead packs should show 1.2o volts on each cell. Charged cell should be in the 1.5 to 1.6 range.Hope this helpss some of you.

I thought I read that you require the program card to set the esc for lipo ?

[dendrobate]

Anyone recommend the ESC programmer settings when using with a pair of venom 4200 6 cell pack ?
Thanks

[DonVlcek]

Part 1 Solving the Blackjack 26 ESC Shutdown Problem

The first time out with the Blackjack 26 Brushless the boat functioned perfectly. I ran the boat all over the lake until the battery voltage went low. When the voltage went low boat just stopped in the water, and when I released and reapplied the trigger on the transmitter (the throttle), the boat just went a short distance and stopped. It didn’t take me long to figure out that I could only go to half throttle without cutting out, so I returned the boat ashore. Not bad for the first day, and I liked the low voltage cutout feature of the Blackjack 26 ESC.

After recharging the batteries the second time out was a different story. Every time I tried to advance the throttle, the boat just went as short distance and stopped, so I just returned ashore at half throttle.

The third time out was just about the same as the second, what has happened to my ESC? Knowing that most of the problems we have with electronic devices are self inflected, I decided to look at what I was doing wrong. OK, time to read the manual. Wamo, there it was. I was just leaving the switch turned on and just connecting the batteries. The manual didn’t say “With the transmitter turned on and the ESC switch turned off connect the batteries, then turn ON the ESC switch. You will here a Low/Hi beep”.

The correct power on sequence is:
• Check to see if the ESC switch is turned OFF
• Turn on the transmitter
• Connect the batteries
• Turn on the ESC switch (Low/High confirmation beep)

Using this sequence the Blackjack 26 Brushless ran like the first time out. After running for a while, I did notice that in tight turns, just a fraction of a second after heavy cavitation, the LVC kicked in. This was probably due to a drop in voltage when the prop re-caught, just after the cavitation. If I loosened up a bit in the turns, the LVC would not kick-in. After a couple more laps, the LVC started kicking in, and it was time to bring it in.

While I was back home, recharging the batteries and greasing the drive shaft, I decided to raze the strut and re-test. This should lower the current and raze the voltage, especially in the turns. While attempting to raze the strut I didn’t get very much so I decided to reprogram the ESC

Before reprogramming the ESC checked the cutoff voltages in the manual

High Cutoff Mode
• The Cutoff voltage for NiMh is .9 volts per cell or (.9x12 cells = 10.8 Volts)
• The Cutoff voltage for LiPo is 3.0 volts per cell or (3.0x4 cells = 12 Volts)
Low Cutoff Mode
• The Cutoff voltage for NiMh is .7 volts per cell or (.7x12 cells = 8.4 Volts)
• The Cutoff voltage for LiPo is 2.7 volts per cell or (2.7x4 = 10.8 Volts)

Once the batteries were recharged, I checked the charging Milliamps/Time at 3160 MAh and 101 minutes, at a charge rate of 2 Amps. Using two 3800 MAh batteries is appeared the batteries were going dead and the Voltage Cutoff operated correctly.

I decided to go ahead with the ESC reprogramming, and reset the ESC with the programming module, to the settings below, and take the boat back to the pond.

ESC programming:
• Battery Type, NiMh
• Cutoff Voltage, Low
• Cutoff Type, slow Down
• Break, Off
• Timing Low, In runner Motor
• Throttle Curve, Linear

Well I guess all you guys out there with Blackjack 26 Brushless are going to have to purchase the programming module. The little missile turned on like I would never expected from the Duratrax 3800 MAh batteries. The Low Voltage Cutout never operated and never s kicked out in the turns. I could tell when the boat slowed down it was time to come in (why push it).
I don’t know what kind of a program the ESC had in its little brain box, but the program module fixed it! I will rename this file to Part 1 Solving the Blackjack 26 ESC Shutdown Problem. The next testing will be done with LiPo’s.

[dendrobate]

Thanks for the info , nice to see a new member help out another new member.

[DonVlcek]

I think the problem started when I plugged in the batteries with the ESC switch still ON and the transmitter turned OFF. The ESC reprogrammed itself. It’s a different kind of a beep when the ESC excepts a new program.

Now that I am using the correct power on sequence I haven’t had any cutting out problems.

[Chop]

I too have been having problems with my Blackjack. I followed this thread and programmed it as suggested with one exception:

ESC programming:
• Battery Type, NiMh
• Cutoff Voltage, Low
• Cutoff Type, slow Down
• Break, On
• Timing Low, In runner Motor
• Throttle Curve, Linear

The boat, on two occasions has gone out, about 150 yards and then just quit.

Any suggestions?