Amperage Draw when engine is off?

I have a 99 Nissan Frontier that I have installed a keyless entry with a starter kill relay, two window rollup modules and an LED scanner. I have had problems with the battery dying overnight. Turns it out it was an Exide battery which according to some knowledgeable electrical guys, aren't very good batteries. Anyways, I measured the current draw at 0.29 amps when the engine is off and the doors are locked with the Keyless Entry. Does this seem like an unusual amount of current flow, or does this sound about average for the type of system. Someone please let me know..

.29 amps is too high. If I had to guess I would say your starter kill relay isnt wired correctly and is being powered when you press the lock button. A typical relay thats used for starter interupt uses about .20-.25 amps when energized. If you subtract that amount from your .29 obviously that would leave you with around .04 - .09 of draw which is about where your vehicle should normally be. If your starter relay has a negative trigger wire from the keyless entry and you have the other side of the coil going to a constant +12v then try switching the 12v wire to a source that is +12v only when key is in "run" and "start" position.

I know nothing about the 99 Frontier, but some cars have BCM's or other components that may stay active until the car has been shut down for at least a good 20-30 mins. If this is the case, when you are working with any door  or hood open, press in the pin switches with something, and wait a good amount of time. This will trick the car into going to "sleep". Then do your multimeter tests.

How are you conducting your tests?

I used a cheapo craftsman multi-meter that luckily was able to measure DC current. I am not sure how accurate it was, but I measured it across the postive terminal on the battery. This meter requires that you interrupt the circuit to make the measurement. I would like to find a more reliable and accurate Fluke meter that can measure DC current with a clamp on style setup. Anybody know any models that do that?

What is the current draw of a standard relay?

Here is another question regarding the starter interrupt circuit. I have a Crimstopper CS-865RKE. Its been over a year since I installed this so its a little bit foggy, but according the diagram for that model, it is putting out a negative output when the system is "armed" therefore the starter interrupt relay is powered in the armed state. The ignition wire is connected the the 30 and 85A terminals of the relay, so basically the starter is active when the relays is at rest, but when the relay is powered during the "armed" state the starter circuit is disabled. Does anyone know any way to reverse this so that the relay is not sitting there pulling current whenever the system is ARMED?

Thanks

Brad