Quote:
Originally Posted by multiweb
Here's my set-up. Red is power, green is data connections [USB, serial]
Does this look alright or is there any possibility of ground loop currents anywhere?
Laptop is Toshiba Satellite [runs on 19V with an inverter]
Both power tanks are Celestron 12V [17Ah]
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Hi Marc,
Can you not connect both tanks in parallel and so you get a common ground for all ?
2x 17Ah is equal 1x 34Ah and you are certain that all goes down at the same time.
You are drawing from one tank far more power then from the other. The biggest consumer is your LapTop and that will make stop the Gemini and your Laptop first and the camera would continue to work. Makes no sense
You talk about inverter. Do you mean you step up first to AC current (¿110v or 220v' I do not know what AC current you have down there
) and then you step down again just because of your LapTop ? You are just killing Ah
You can get step up DC-DC converters for less then US $ 40.00 like this one
http://www.batteryspace.com/index.as...OD&ProdID=2737
I have one working for my Gemini as I feed it with 18volt.
There is a lot of possibilities to improve your power supply and simplify it ...