My MacBook Pro (early 2015) was showing the battery condition as replace now for a few months. It started to turn off at 60% and by the end had less than 5% of its design capacity. I couldn't use without keeping it plugged in. I took it into Apple, who said the battery is attached to the body so they would have to replace the entire bottom of the laptop with a new part - but this would mean sending my laptop away for up to a week or more. I can't remember exactly how much they quoted but it was a fuckton.
Instead, I ordered a replacement battery & kit from iFixIt, followed their guide & replaced the battery in less than an hour. Now it's working as if it were brand-new. Would definitely recommend them. Cost around £115 inc shipping, which is a lot cheaper than the repair stores you get too.
On another note I was absolutely shocked by the amount of dust inside the body when I opened it up. Tried to get as much of it out as possible, worth it as it doesn't seem to get as hot anymore.
Yeah it's another example of something that would send Jobs' body spinning in the grave - even on my rapdily-aging mid 2012 MBP, the rear cover's separate battery compartment (which used to such a laughingly simple lever-and-pull-out system) has been replaced with a complete cover!
It's fucking ridiculous now, attaching a battery to the panel so you basically scam users into going to service centres!
Last time I went to an official service centre, they had a booking-in-system, for diagnosis of issues. Turns out that that's just a control mechanism for THEIR benefit, to receive items and check them in 'efficiently'.........they still wanted me to leave it there for "a few days until we get around to looking at it."
Fuck. Right. Off.
There are loooooooooads of places now, private retailers, with apple-trained techies who know this 'older' equipment literally inside out (so the argument that "official centres have staff trained on latest equipment" only applies to users with.........the latest equipment) and they're perfect if you're not confident opening up an expensive laptop to poke around in the dust.
Oh yeah - that dust thing. Remember then black strip that separates the keyboard from the screen as you fold it open? Some snowflake tries to sell me a 2017 model the other week and I asked why that part was wide open - he said it's more efficient for cooling. I said, "Yeah until it gets clogged up with dust and crumbs and granola and quinoa or chia seeds......."
I think you just proved that point. Protect from the dust getting in, machine doesn't get as hot as quickly cos the fucking fan's not so easily clogged.
Again, I hear Jobs spinning, end of nerdyrant.