Acer Aspire R5-471T Battery swollen (thickness). Is it caused by keeping it plugged in?

My Acer laptop's battery has seemed to have swollen in thickness over time, putting pressure on the laptop's case (bulge). I took the back off and removed the battery, and replaced the keyboard (a few bad keys). (Note I usually leave the charging cord connected, thinking there was something regulating the need for charge, etc)

Is this bulge a normal thing with this Acer? Or was it caused by leaving it plugged in?

Will the battery go back to normal size unplugged, or do I need a new one? Laptop seemed to work on battery only just before opening the case.

If replacing, is there a suggested battery, or possibly a thin version of the battery?

Online dimensions show replacement batteries to be just under 1 inch thick (.932)

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sri369

Keeping constantly plugged does not cause battery bulge - I have all my laptops plugged in almost all the time for many years now. It seems like a bad battery in your case. Just get the battery replaced and you should be good.

On a side note, keep it plugged in when using, and when not using turn off the power.

Puraw

https://community.acer.com/en/discussion/716113/acer-aspire-r5-471t-battery-swollen-thickness-is-it-caused-by-keeping-it-plugged-in

If this is still the original battery from 2016 you should replace it after 8 years, leaving the power adapter plugged in 24/7 will not damage a Li-Ion battery. Battery lifespan is 1,000 charge cycles or 4-5 years then you should replace it as drainage becomes non-linear with unexpected performance like sudden power drops/dead cells (or what you noticed battery swelling).

StevenGen

https://community.acer.com/en/discussion/716113/acer-aspire-r5-471t-battery-swollen-thickness-is-it-caused-by-keeping-it-plugged-in

Its because its an old battery and batteries deteriorate with age and if used beyond their used by date, they do swell and get damaged and are a serious fire hazard "so be warned " and change the battery asap!

These are all the suitable replacement batteries for your Aspire R5-4761T , so buy one of these batteries and change the on inside your laptop. Good luck and hope this helps you out some more.