ORIGINAL: Reilly4
I will do as you suggest and run via BEC to correct the transient earthing possibility.
Don't bother because you have been doing that all along and that is partly what is causing the problem.I was trying to get you to eliminate the possibility of a bad connection/bad cell in the receiver line but, all along,you had used the becs for the escs.
That was the reason I asked what position you had the esc switches in.
Umi has just stated the switch just isolates the power to receiver but I think it may isolate either the input or output right at the bec regulator.That would allow you to power the esc 5 volt circuit from the receiver pack and avoid the low voltage cut out.
Best just to forget that and concentrate on the NIMH D batteries.
I am trying the two x 8D cell NiMH battery systems as they have a better power to weight ratio than the usual 6V x 7.2 A/H gel batteries that I normally use in the other boats. The 9 A/H rating was also a plus.
Fraid the likely problem is the NIMH D battery is
too low power for 700bb even although the capacity is higher than the gel battery.
Question. Why does the disarming only happen when the two circuits are in operation. Do you think that the receiver power supply - when split via Y harness may be the problem.
If,as you say,there are two separate circuits and you have not joined the NIMH batteries or escs at any other point other than the Y-lead then I don't think it actually has relevance.
Question
I am not sure if I understand this correctly.
What will occur if I connect the BEC wire and keep the ESC switch off It's up to you whether you are willing to try reconnecting centre pins and keeping switches OFF. Power is connected from the main battery and from the receiver. If the switch is off then I assume the power may come via the main battery. Is that correct. Will the radio signal still come through to the ESC.
Forget about that completely.
I was not on the same wavelength as you.I tried to find out which battery supplied esc internal circuitry(and the voltage failsafe) and you said you disabled the becs.