Hi, i'm hoping someone can help me out.
I have a 12V, 41Ah car battery, which I want to use to power a CCTV system. I'd like to know how long I can run it for without risking battery failure.
The system comprises:
2 cameras - 350mA, DC12V;
a digital timer - 16A (8)A, 250VAC
a DVR unit - 3A, 12V, power supply AC110, 230V.
One of the cameras has 28 m of cable between it and the power supple & monitor, so I don't know if this would effect the power draw much.
All units are as described on the labels, so I may have given pointless information in there too!
Many thanks if anyone can help.