Member Avatar for jackal24

Hi guys,

I have a Samsung P28 Laptop with a Li-Ion battery.Is it safe to leave it plugged into the mains even when the battery is fully charged?Would it harm the system in anyway?I was told that the battery will automatically stop charging when it's full.Is this true?I appreciate the help in advance.Thanks!

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Dani AI

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For (Samsung P28) and everyone reading: the little LED that mentioned is useful for a quick status check, but the real factors that affect laptop battery life are temperature, how many charge cycles the pack sees, and calendar aging. Modern laptops use electronics to manage charging, yet the cell chemistry still wears down over months and years.

Practical steps to slow that wear:

  • Avoid high operating temperatures. If the bottom of the laptop gets very warm when plugged in, try to improve cooling or run on a hard surface. Heat is the single biggest accelerant of capacity loss.
  • If the machine is on mains most of the time and the battery is removable, consult Samsung before removing it; some models rely on the battery for power regulation. If storage is planned, leave the battery at about 40-50% and keep it cool.
  • Use vendor tools or BIOS settings when available: many manufacturers offer a "battery preservation" or "conservation" mode that limits maximum charge to extend life.

Quick health check (Windows):

  1. Open an elevated command prompt.
  2. Run powercfg /batteryreport.
  3. Open the generated battery-report.html in your user folder and review "DESIGN CAPACITY" vs "FULL CHARGE CAPACITY" and the cycle count.

If capacity has dropped substantially, or the pack gets hot, bulges, or behaves erratically, replace it. Calibrate the indicator only if reported run-time is inaccurate. Keep firmware and power-management drivers up to date for the best long-term behavior.

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Member Avatar for belama

Thats what my laptop does. So does my sister's.
When it is charging, there is a yellow light of a battery with a little electricity sign on it. When it is done charging the battery light is blue.
Yours should do something like that too.

Member Avatar for jackal24

Great.Thanks for that.Mine actuallt turns green. But even then,is it safe to leave it pluggeg in?Thanks,

Alex

Member Avatar for belama

Yeah!! Even if it is plugged in an electrical outlet, it stops charging when fully charged.

Member Avatar for jackal24

Great,thanks mate.Peace of mind at last!

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