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Advice on laptop battery life

Should laptops remain plugged in when their battery is 100% charged?Best usage for a laptop being used as a desktop without removable batteriesProper way to charge laptopLi-Polymer laptop battery adviceWhen should I charge my laptop?Prolonging Lithium-ion battery life: what should I do?(Dis)connect laptop to/from AC through software?Run laptop off AC power without charging batteryHow to initialize a lithium-ion battery?What happens when laptops reach 100% charge?Optimizing battery health on device that is usually plugged in

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1

1

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.

laptop battery

share|improve this question

edited 7 hours ago

JustAnAmateur

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  It’s impossible to answer this question. It depends on the battery technology and the charging system. Neither of which we have any information about. You should be able to assume that the manufacturer knows better than you and you should just leave it plugged in and charging unless you need to run it on battery. What is true is that you can only charge and discharge a battery so many times, so that act alone shortens the battery life.
  
  – Appleoddity
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  According to BatteryUniversity, Lithium-ion batteries prefer not to be charged in deep cycles. But if the battery is easily replaceable, and you need the entire capacity, feel free to use it.
  
  – neverMind9
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I added the fact that I was referring to Lithium-ion batteries. @neverMind9 thank you.
  
  – JustAnAmateur
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Should laptops remain plugged in when their battery is 100% charged?
  
  – slhck
  3 hours ago
  

  
  
  
  

add a comment | 

1

1

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.

laptop battery

share|improve this question

edited 7 hours ago

JustAnAmateur

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  It’s impossible to answer this question. It depends on the battery technology and the charging system. Neither of which we have any information about. You should be able to assume that the manufacturer knows better than you and you should just leave it plugged in and charging unless you need to run it on battery. What is true is that you can only charge and discharge a battery so many times, so that act alone shortens the battery life.
  
  – Appleoddity
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  According to BatteryUniversity, Lithium-ion batteries prefer not to be charged in deep cycles. But if the battery is easily replaceable, and you need the entire capacity, feel free to use it.
  
  – neverMind9
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I added the fact that I was referring to Lithium-ion batteries. @neverMind9 thank you.
  
  – JustAnAmateur
  7 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of Should laptops remain plugged in when their battery is 100% charged?
  
  – slhck
  3 hours ago
  

  
  
  
  

add a comment | 

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.

laptop battery

share|improve this question

edited 7 hours ago

JustAnAmateur

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 7 hours ago

JustAnAmateur

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 7 hours ago

JustAnAmateur

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

New contributor

JustAnAmateur is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 9 hours ago

JustAnAmateurJustAnAmateur

113

2 Answers
2

active

oldest

votes

2

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.

share|improve this answer

answered 6 hours ago

harrymcharrymc

266k14278585

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So even when the battery is at 100% I can still leave it plugged in and cause no harm?Would this be better than unplugging it and recharching it later?
  
  – JustAnAmateur
  6 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  According to the usual advice, you may leave it connected. However, for long periods it might be safer to disconnect to avoid power surges. For very long periods, the battery might self-discharge, and it's said that if it becomes too low it might suffer or even die.
  
  – harrymc
  6 hours ago
  

  
  
  
  

add a comment | 

1

@Harrymc answer us largely correct, but there are additional things yoy may wish to consider -

• Lithium batteries age even when not in use - how much depends on temperature and how full it is.


• Some laptops will allow you to set a maximum charge percentage (in BIOS). A maximum charge of less then say 75% will greatly prolong the life of your battery. You should use this if your laptop is normally left plugged in.


• Using the charger while battery is plugged in wont typically damage the battery and can prolong the systems life by preventing it from discharging and needing to be recharged. Be aware of CHARGING the battery while using the laptop. This will work fine but can generate more heat - and heat is not ideal for a lithium battery.

share|improve this answer

answered 3 hours ago

davidgodavidgo

45.1k75392

add a comment | 

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2

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.

share|improve this answer

answered 6 hours ago

harrymcharrymc

266k14278585

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So even when the battery is at 100% I can still leave it plugged in and cause no harm?Would this be better than unplugging it and recharching it later?
  
  – JustAnAmateur
  6 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  According to the usual advice, you may leave it connected. However, for long periods it might be safer to disconnect to avoid power surges. For very long periods, the battery might self-discharge, and it's said that if it becomes too low it might suffer or even die.
  
  – harrymc
  6 hours ago
  

  
  
  
  

add a comment | 

2

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.

share|improve this answer

answered 6 hours ago

harrymcharrymc

266k14278585

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So even when the battery is at 100% I can still leave it plugged in and cause no harm?Would this be better than unplugging it and recharching it later?
  
  – JustAnAmateur
  6 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  According to the usual advice, you may leave it connected. However, for long periods it might be safer to disconnect to avoid power surges. For very long periods, the battery might self-discharge, and it's said that if it becomes too low it might suffer or even die.
  
  – harrymc
  6 hours ago
  

  
  
  
  

add a comment | 

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.

share|improve this answer

answered 6 hours ago

harrymcharrymc

266k14278585

share|improve this answer

answered 6 hours ago

harrymcharrymc

266k14278585

answered 6 hours ago

harrymcharrymc

266k14278585

answered 6 hours ago

harrymcharrymc

266k14278585

1

@Harrymc answer us largely correct, but there are additional things yoy may wish to consider -

• Lithium batteries age even when not in use - how much depends on temperature and how full it is.


• Some laptops will allow you to set a maximum charge percentage (in BIOS). A maximum charge of less then say 75% will greatly prolong the life of your battery. You should use this if your laptop is normally left plugged in.


• Using the charger while battery is plugged in wont typically damage the battery and can prolong the systems life by preventing it from discharging and needing to be recharged. Be aware of CHARGING the battery while using the laptop. This will work fine but can generate more heat - and heat is not ideal for a lithium battery.

share|improve this answer

answered 3 hours ago

davidgodavidgo

45.1k75392

add a comment | 

1

@Harrymc answer us largely correct, but there are additional things yoy may wish to consider -

• Lithium batteries age even when not in use - how much depends on temperature and how full it is.


• Some laptops will allow you to set a maximum charge percentage (in BIOS). A maximum charge of less then say 75% will greatly prolong the life of your battery. You should use this if your laptop is normally left plugged in.


• Using the charger while battery is plugged in wont typically damage the battery and can prolong the systems life by preventing it from discharging and needing to be recharged. Be aware of CHARGING the battery while using the laptop. This will work fine but can generate more heat - and heat is not ideal for a lithium battery.

share|improve this answer

answered 3 hours ago

davidgodavidgo

45.1k75392

add a comment | 

@Harrymc answer us largely correct, but there are additional things yoy may wish to consider -

• Lithium batteries age even when not in use - how much depends on temperature and how full it is.


• Some laptops will allow you to set a maximum charge percentage (in BIOS). A maximum charge of less then say 75% will greatly prolong the life of your battery. You should use this if your laptop is normally left plugged in.


• Using the charger while battery is plugged in wont typically damage the battery and can prolong the systems life by preventing it from discharging and needing to be recharged. Be aware of CHARGING the battery while using the laptop. This will work fine but can generate more heat - and heat is not ideal for a lithium battery.

share|improve this answer

answered 3 hours ago

davidgodavidgo

45.1k75392

share|improve this answer

answered 3 hours ago

davidgodavidgo

45.1k75392

answered 3 hours ago

davidgodavidgo

45.1k75392

answered 3 hours ago

davidgodavidgo

45.1k75392