Advice on laptop battery life

batterylaptop

I am planning to buy a laptop and, as I have never had a laptop of my own before, I have started to read up on the best way to charge a laptop so as not to damage battery life.
Is it all right to charge it to 100%, unplug the charger, let the battery drain to something like 30% and then repeat? Furthermore, does using the laptop while the charger is plugged in harm the battery? I believe that it doesn't, but I just want to make sure that this is the case.
EDIT: I am referring to Lithium-ion batteries.

Best Answer

You need to know that:

  • Rechargeable Lithium-Ion batteries have a limited life and will gradually lose their capacity to hold a charge, and this is irreversible.
  • Lithium-Ion batteries continue to slowly discharge (self-discharge) even when not in use or while in storage.
  • Avoid completely discharging batteries.
  • Lithium-ion batteries don't like being charged all the way up and run all the way down. Better to do little recharging here and there.
  • Experts advise that after 30 charges, you should allow lithium-ion batteries to almost completely discharge once, but never totally. (But I don't think that most people bother with it.)
  • You can leave your laptop plugged in all the time, and you cannot overcharge it. Most laptops are smart enough to cut the battery out of charging once it's full.
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