Battery/Ignition question

[phraza]

Hi,

So the c10 has been in the garage for 2 weeks while I was away, went to start it today and the battery was dead. It has a new battery, alternator and regulator.

Chucked the battery charger on it for a few hours and went out to buy a multimeter to check the juice in the battery. (Also got a new positive terminal as the current one was pretty old). When I got back the battery was reading about 12.5v which is what it should be, so I changed the terminal and hooked it all up and it fired straight up.

Pretty sure I didn't leave anything on over the 2 weeks, is there a way to check what is drawing power while it's turned off? Or is it a matter of going around checking everything with one of those current testers (with the light in it)?

Just a side note, the ignition, I discovered today that there is another position for the key, I thought off was straight up and down, but I managed to turn it one more position to the left, is that true off? Would that be my issue with the battery down?

Thanks all, sorry if this is a rookie question

Cheers