Acer Swift 5 SF514-52T CPU throttles to 0.4 GHz when battery is removed

overture1928

Purchased around 2018

Windows 10, Intel

Core i5 8250U

Lately my battery has had some trouble. Initially the battery would indicate being100% charged, but would only last for 30 minutes or so when unplugged from the adapter. The laptop was plugged in most of the time, but then one day I noticed it was stuck at 99%. After every couple days it would lose a percent even though it was plugged in all of the time. Eventually it got down to about 90%, so I decided to open it up and check out the battery. Well, it was kind of bulging, so I decided to remove it with the intention of purchasing a new battery later. It now says "No battery detected" in the bottom corner, but unfortunately it is very slow without the battery inside. It seems to be stuck at 0.4 GHz. Even on high performance mode with CPU min/max power at 100% in the advanced options it still is throttled at 0.4 GHz. Even though it doesn't have a battery in it, I performed a battery reset by pushing the power button for 15 seconds and the battery pin hole button for 5 seconds all while the laptop was unplugged, but still nothing. I also removed Intel TDP, but again, there hasn't been any change.

Any help would be much appreciated.

Accepted answers

JackE

A functional battery is needed because it must sometimes supplement the power adapter during high power demand. If the battery is not installed, the power adapter can't meet the power demand without help from the battery. The CPU & GPU will then automatically throttle to reduce power. You need to purchase a replacment battery. Simply google search the keywords "SF514-52T" & "battery" for vendors who ship to your location. Cost about $30usd.

All comments

JackE

A functional battery is needed because it must sometimes supplement the power adapter during high power demand. If the battery is not installed, the power adapter can't meet the power demand without help from the battery. The CPU & GPU will then automatically throttle to reduce power. You need to purchase a replacment battery. Simply google search the keywords "SF514-52T" & "battery" for vendors who ship to your location. Cost about $30usd.