Did the 500A-switch drain the battery?

[Kruegerruda]

I forgot the 500A switch after using the nato-plug. 3 days later the battery shows 0%. Drain the switch the starter battery, even with ignition off?

 

[pmatusov]

I forgot the 500A switch after using the nato-plug. 3 days later the battery shows 0%. Drain the switch the starter battery, even with ignition off?

Most likely not the switch but the relay coil connected to it.

 

[Stealthn]

I noticed a draw on my with the switch left on as well.

 

[Tenac]

Does the 500A operate without the PWR switch as well? Or do we think all the switches are like that with draw?

 

[The_Ick]

Does the 500A operate without the PWR switch as well? Or do we think all the switches are like that with draw?

That is what I was thinking as well. I accidentally turned on the 500amp switch and with the engine running it would turn it off after a few minutes of non-activity. Seems weird it would turn it off with the engine running but leave it on when the vehicle is off.