What computer do you have?

[Tiberius]

No it doesn't, you need to be able to buy the replacement part you're replacing.

Which you can.

And with no evidence that they're even genuine new batteries. Which I doubt, because like I said Apple's policy is to cease business with any manufacturer they find out has been selling them to third parties.

A battery is a battery. You can often buy non-brand batteries for laptops and other devices which are cheaper than the "official" batteries. If it works and doesn't blow up, it's a decent battery. Doesn't have to have the Apple seal of approval. Plus, this does nothing to negate your original definition of "user-serviceable". You made no stipulations that the replacement battery had to be "official". Yet another example of you moving the goalposts because you can't accept the fact that in this instance, you are just wrong.

I wouldn't trust that company if they said the sky was blue. Firstly, their genuine batteries are labelled as "refurbished". Secondly their supposedly new batteries from supposed company "NewerTech" do not have a C-Tick. Seriously? On the actual NewerTech website there is no indication anywhere that they have been issued an electronics certification from any country - the US, the EU. A genuine electronics company would have the certification displayed so it can be verified by users. Or how about this iphone5 battery supposedly new with a 2012 manufacture date? Like I said I wouldn't trust them.

Sigh.

Monitor, USB, power cable, hard drive, display adapter, ...

OK, firstly laptops definitely do not come with a monitor as a standard. That's absurd. Most people use the actual screen that comes with their laptop, and connect it to a monitor if they actually need it.

USB. Fine. Which version though? 2 or 3? How many ports?

Power Cable - Ahhh...you got me there. Yes, power cables come as standard. Good job Apple supplies one, else you might deem them even more inferior.

Hard Drive. Yes, but what kind? SSD or no?

Display Adapter. This was never a standard. Depending on the laptop, you could get VGA, DVI, or HDMI (more recently). As laptops get thinner, you might even see mini-HDMI.