One of my main Laptops, (that I actually love!), is an
Acer Aspire R7 571 and recently it wouldn't power-up.
Even with the power-cord attached, and the LED's showing power attached, & turned on. (More on that
LATER!).
Disassembly, (yep... with a long flat internal battery), soon revealed the problem with the battery-bank. Photo...
https://imgur.com/a/OsuHLuHThe original, which was a
Lithium-Ion (which is typical/ok generally), was bulging badly & about to burst!!!
This Laptop was brand new, about 2+1/2 to 3 years ago. Generally, I leave the power-supply plugged in and
turned on all the time. I'm not sure if this should/could cause a charging problem though ??
The replacement Pack, (obtained from Interstate here in Australia), is actually a
Lithium-Polymer type.
Researching on the Net, revealed that the Lithium-Ion packs can suffer from this, like some SmartPhones have.
Where-as the Lithium-Polymer packs do not!!?? However, they also say that Lithium-Polymer has slightly less
'grunt' and can often cost more. If so, then I would RATHER that !
Anyway, to finish off as a side-note, from my 1st paragraph, I was thankful for YouTube before Re-Assembly !!
The battery-pack has additional sensors inside, and the MotherBoard has some nefarious(?) functions that
no-one can explain, whereby you can NOT just put a new battery in and power it up !?
Firstly, there is a microswitch on the MotherBoard that has to be pressed for 4 secs afterwards, with the
power-cord unplugged, and then the Laptop UNTOUCHED/operated/plugged-in for up to 20 minutes...
THEN, (usually) upon 1st powering up, you have to press the Power-On button and hold it, for at least 45
seconds. Upon releasing it, it will either start up straight away, or after another brief press...
Evidently, it's been the Bane of many a confused & frustrated owner !!!