HI, I just finished my 2.8 ROV. Yesterday I tested in the poll and it work fine for a couple of minutes. like 3 to 4 minutes, then suddenly everything shut off. So I disconnected the usb cable in order to prevent any short circuit in the case that the electronics cylinder was making water. It was not.
So I re connect the ethernet cable and the usb cable to my Mac Pro. I saw the main board starting to flash the blue leds, a minute or so later the camera LEDS flashed for a couple of times and then the cockpit re-stablished connection with the ROV.
So I tried once more, It went into the pool at about 5 ft down it work well, camera, camera LEDS, lasers, all three motors, etc, etc,… and 4 minutes later… again it suddenly shutdown!!!
I repeat the entire process three times, and the same thing kept happening!
Today I decided to test the ROV controls, connections and everything I could imagine out of the water. everything worked perfect… I even discover a couple of tricks to maneuver and let the motors running with out pushing the forward arrow! any way all was good.
Then I noticed that the battery voltage was shifting from 5.6 to 8.3 or 9 volts very fast. I thought it was because I was trying everything, lights intensity, lasers on and of, vertical motor on an of, changing the speed of the motors etc, etc…
So decided to take the batteries out, mark them by side and sequence 1,2,3. and then measure the voltage in each battery.
To my surprise, The port side 3 batteries were 50% lower that stboard ones!!!
I put the batteries back to both the tubes battery and I just couldn´t connect to the cockpit. everything started normal, but about two minutes later, the camera LEDS started to blink non stop. untill I disconnected the USB cable.
I am now recharging the port side batteries, to try it again.
Does this happen to anyone else??? any comments that may help understand what may be happening?
Your comments will be much appreciated!