I have finished all the necessary changes in hardware and software as well as bench testing and real world testing. The problem turned out to be the precharge circuit, now the switch is tested and working flawlessly with 13S and 11000uF capacitors which is equivalent to 8 FOCBOXes in parralel on 13S!
Here is a quick (and quite shaky ) video from todays testing. I have been starting and stopping the switch for several hours in both modes and I am happy to say that it works well.
I removed the audio track because it was so windy that you could not hear a word anyway.
At the beginning of the video I point to the rear light that is powered from the 5V from the VESCs to demonstrate it is off, same for the remote. This was recorded in the pushbutton mode which requires to be held for 2 seconds to turn off, than it can be started again with pushing the board.
You can expect better looking instructional video soon! The switch will be available at the beginning of next week! I am so excited!
Thank you all for being so patient and understanding, Martin.
It is pretty good, I have not had the signal fail in a long time. The downside is that it is not slim, I am planning on 3D printing a better shell for it. I just struggle to find the free time right now
I am very excited to finally announce to you that the push to start switch is available for order now! with a launching sale! Get yourself one here
If you want to you can choose to buy one with or without the pushbutton. There was a small change, now you will not need to solder bridge the pads to change modes, I put a sliding switch there to make it easier and quicker.
Be sure to scroll down and check out the detailed instructions on how to do everything with the switch from start to finish! Hope that the instructions cover all of your questions, if not let me know!
I have been riding with this final version of the switch in the timer mode for the last week and a few days and I have to tell you it is AWESOME! I may be a little bias but I dont have to worry about forgetting the board turned ON since I store it in the garage, I would not notice. Now I just leave it there and it takes care of itself.
And lastly, I want to thank everyone for the suggestions on improvements, I would not be able to get to this point without you. And also, thank you for your patience.
Nice work👍
Just ordered two. Can’t wait to test them out!
One thing you maybe want to add on your website. In the description mentioned that it works as anti spark as well. Good to know for people who not familiar with it.
@b.sk8 Yes it can be used with it, you will just either have to leave the pushbuttons on the ESCs in ON position or just bypass them internally. Either way works.
@b264 The auto off is user adjustable from 5 to 45 minutes. I wanted to go higher a little on the upper limit but since the potentiometer has only 200° I think it was so increasing the range would make it harder to choose the desired time with some reasonable precision
@Martinsp I take your word for it and ordered one. This is a push button so, I am not sure how to leave it at ON. Is one switch enough to operate dual Fesc?
The push button on the fsesc is latching which means that it stays in position after you press it like a light switch would but on the push to start switch the pushbutton is momentary so it returns to default position after being pressed like a door bell switch for example
Yes one is enough you can split the output between them
) video from todays testing. I have been starting and stopping the switch for several hours in both modes and I am happy to say that it works well. 
I removed the audio track because it was so windy that you could not hear a word anyway.
At the beginning of the video I point to the rear light that is powered from the 5V from the VESCs to demonstrate it is off, same for the remote. This was recorded in the pushbutton mode which requires to be held for 2 seconds to turn off, than it can be started again with pushing the board.
