Power supply question

[troyzrus]

It's been a while since I've messed with a Predator. I need to load the DCX calibration update, but I don't have a power supply. Can I have it plugged into my vehicle for it to get power from the car, then of course plug the serial cable to my laptop? Will that work or must I have a power supply? Thanks!

[Mike_Levy]

That'll work. Its how i did it originally. Then I got sick of sitting in the car and bought a power supply from Radio Shack.