I have a camera system I want to convert to battery operation, and have both gel
cell and marine lead acid 12 volt batteries available. The camera requires 12 V
+/- 1 v at 300 milliamps and the DVR requires 5 V at up to an amp. I'm rookie,
so am wondering if I should bother with like an LM7812 on the camera, or should
I just feed battery voltage directly to it? And is there something better than
the LM7805, since I'm going to want to use the least electricity as possible,
thus not waste elec on the heat generation of dropping 7 volts at an amp.
Thanks, Chuck