I was trying different batteries over the weekend. I tried the 8 Duracell Alkaline battery 1.5v LR14 and 8 Eveready Rechargeable 1.2v CH35 Nickel cadmium. I all so took apart a 14.4 volt battery pack from Dewalt that is used for my drill. I figured Dewalt must know something about batteries. This has 10 batteries and required a different lenght tube. I made a connector from the old Dewalt battery holder with 2 wires that plug in to the Dewalt charger for recharging the batteries. So I can leave the batteries in the tubes to recharge. I have a connector between the tubes and the electronics. I still am having the same problem with the system loosing the internet connection when using the forward thursters at any but very low speeds. The o-ring battery tube ends seem to be fine and haven't leaked (so far, 3 ft. of water). The molex connectors are being used for testing, turning off the unit, charging, and I am in fresh water (rain water from the roof of this building).
I have a short video of the unit running in my test tank but but one is 120 megs and the other is over 300 megs. I also have a couple showing the screen capture of the camera and you can see the voltage go low and then I lose the connection. They are not great but do show the OpenROV moving around. The 5 meg limit prevents me from posting them here.1834-batterytube3.jpg (73.3 KB) 1835-batteryconnector.jpg (113 KB)