The battery in my car is fucked and needs to be replaced. How easy is it to change it yourself? I haven't done much stuff on cars but I'm not afraid of DIY stuff.
The battery looks like it is very accessible and that all it takes is to unscrew a few bolts.
If the negative terminal is connected, then the positive terminal will short to any metal part of the car. Touch the engine with it, big sparks. Touch your wrench to a random bracket while you’re removing the positive, big sparks.