Car Battery Died

I forgot about this - my dashcam uses about 100 - 200 mA of power at 5VDC, and over time with my car not being used for 3 weeks it eventually drained the battery completely. I tried to start the car today to see if the engine is still fine, and disocvered absolute silence. I knew something was bad when my remote keyfob didn't unlock the door.

And so I had to order a battery charger off Amazon with 75 amp boost.

Goddamit.