Can anyone tell me how to check Laptop battery health ?

SpacemanSam said:

Sad, but true. I've replaced several "flat pack" batteries (including some swollen ones) and they all required at least partial disassembly of the computer. The worst one was a Lenovo Yogabook which required removing the glued-on keyboard using a blow-dryer and a suction cup to get access to the battery. What were the designers smoking when they came up with that design???

I've done enough laptop disassemblies to replace batteries or upgrade RAM or change to SSDs, and it always surprises me that there are these plastic clips which break as you try to remove the bottom cover after removing all the screws. Yet the maintenance manuals never discuss these clips.

With older designs, there was a screw holding a plastic cover in place, and when you removed that cover, you got access to the HDD. Why did designers abandon that design?

I've learned that before I would buy, or even review a proposed laptop purchase by someone else, I download the service manual and read about RAM, SSDs, etc.

Whatever those designers were smoking, it's probably illegal in many countries.

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Brink said:

True, but unfortunately most newer laptops do not have easily removable batteries to swap with fully charged batteries as needed.

So true. However, I personally would never buy such a laptop. For years now I have been using Lenovo T series machines, which are meant for business travelers. I was one of those people for a long time, and the dented and busted corners and sides of my machines are proof of that.

I'm no longer a business traveler, but I still travel, so I'm willing to pay a bit more for a better traveling machine with a bigger screen than some "ultrathin, ultralight" system that is really just a desktop replacement for casual use.

jk22 said:

I have changed the battery because yesterday it dropped from 27% to 6% directly. ... But the point is on Windows 1 the battery number and battery health is same as before ?

Battery "health" is, as I said, not defined. It is also quite a limited concept.
Comparing the last full charge to its design capacity tells you how worn out the battery is. It does not and cannot tell you if there is a defect within it.

jk22 said:

So, I told to the seller guy he said come to the shop and he will replace it.

Accept his offer.


All the best,
Denis

I did not realise that was what you meant.

I do not know your utilities so do not know if they are reliable.
If the battery serial number reported by a battery report is the same as it was before then the battery has not been changed.
PowerCfg /batteryreport /output "F:\BatteryReportingOutputs\BatteryReport.html" /Duration 1
but replacing my F:\BatteryReportingOutputs with the path to a folder that you have on your computer.

Denis