Just chiming in, battery swelled up somewhere early 2023 for the model I bought in 2019, this with it not being in use for about a year and I "forgot" to discharge it to the halfway mark for longer term storage (didn't plan not to use it, just ended up that way).
I've tested with just removing the cable in the battery, works fine with directly plugged into the wall, so took the battery out and now have a lighter device and the trackpad works fine again (had issues with left/right click due to battery bulge). Removal is easy, just the 4 screws and remove downward/towards the bottom, didn't have to unplug anything except for the battery cable that gets removed easily, didn't have to touch any of the ribbon cables.
Only the WiFi card there on the right has a small tape over the screw that goes to the battery, easy to remove, think that's just to help tidy the cabling there. Would consider this a very easy battery replacement if you have a replacement, way easier than the glue nonsense in the Macbook's one I replaced for a friend.
Blurry photo of the swollen battery:
View attachment 1751709
Model number is "GK5CN-00-13-4S1P-0", buying
this one off Amazon (no reviews, yay), arrives in 10-30 days.
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With this issue 4 years after purchase, would I still have bought the device? Yes, pretty much everything else about the device is good with compromises in the right place for the price point, think the only "real" issue was that needed a BIOS upgrade flash to fix hibernate, and wootware did offer to do that for me back then.
I used this thing for like 10 hours a day , of which 3 hours was probably gaming for most days for a good 4 years, that's pretty extreme for most gaming laptops and yet it held up well. Fan curve is all right (better than my old Lenovo Y5070), could install hardware vendor drivers (e.g. Lenovo didn't update their Intel display drivers, so if hyper V was enabled you had a ghost 3rd screen, was great), the screen for the price point is a good IPS with 144Hz (this was not that common in 2018/19), and then two m2 SSD slots (you can see I filled them with 1+2TB). The WiFi/BT chip is also good since Intel one.
Literally only complaint was that microphone is meh, boot BIOS side takes a bit too long (but I used hibernate/sleep 99% of the time, so whatever, same resume as all other laptops), and the camera is shoddy. Speakers were all right, you'd need a proper Macbook to compete of the same gen.
Love typing on this thing, but think they changed the keys for later models to get it thinner. The software for controlling lights is meh, but I don't ever really use it, and the light bar at the bottom would have been way cooler if could have done something like use it as battery indicator or something, usually just have it off.
Also this generation of intel, recommend always running a light undervolt, adds like 10% to performance for the CPU and extends the battery life by half an hour while less fan noise. I set this up for a few friends to just be on start-up with task scheduler.