when I plugged it into 12 volts it used a constant 230 mA. It does get warm to the touch even when there is no load. I actually have 2 of the same part and the other relay uses 250 mA as well. my power supply is 12.23 volts
I have a MOSFET on it as well as a diode now it seems to be alright. I did measure the high voltage when I was just plugging it in to a battery. I do have one problem. It is hard to explain so I drew a "schematic".What happens is when I power on the MOSFET to power the relay to power the charger (and the laptop is off) the relay clicks ~5 times. It is not a loose wire I checked. When the laptop is on the relay will switch on and off continuously. My guess is that there is interference coming from the laptop or the charger but I may be wrong. Anyways here is the terrible drawing (sorry about this I know it is terrible. I think it is time I get some schematic making software)
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