regarding laptop charging

gradeabra · Jun 18, 2023

Hello,

I would like to know how can i make my laptop only start charging when the battery percentage hits 90% or below..?

zebal · Jun 18, 2023

I think you can't because there is no software sitting between power cable and battery able to control charging.

Perhaps your laptop manufacturer has such software so you should check out.
Please edit your "My Computer" because it currently it says nothing about your laptop.

James · Jun 18, 2023

This is not a particularly healthy practice, so 90% would not be an ideal number for this.

But look here, dependant on your laptop company bios: How to Extend Your Windows Laptop's Battery Lifespan With a Battery Charge Threshold

Try3 · Jun 18, 2023

gradeabra said:
Hello,

I would like to know how can i make my laptop only start charging when the battery percentage hits 90% or below..?

You can only do that if your computer maker provides a software utility to do so or there is a setting in your Bios for it.
In your case, it is not in your Bios because of the screenshots in posts #17 & #19 of your other thread.
So review your Start menu for any relevant utility or search their support site / user forum.

Not all computer maker's provide such a utility.
Some makers that used to provide a utility no longer do so.
There is no publicly available data to support the notion that these utilities achieve anything with modern batteries & their battery management systems.

Denis

gradeabra · Jun 18, 2023

Try3 said:
You can only do that if your computer maker provides a software utility to do so or there is a setting in your Bios for it.
In your case, it is not in your Bios because of the screenshots in posts #17 & #19 of your other thread.
So review your Start menu for any relevant utility or search their support site / user forum.

Not all computer maker's provide such a utility.
Some makers that used to provide a utility no longer do so.
There is no publicly available data to support the notion that these utilities achieve anything with modern batteries & their battery management systems.

Denis

I would like to know is it safe to use laptop on power supply all the time(even when battery is at 100%)?

Try3 · Jun 18, 2023

gradeabra said:
I would like to know is it safe to use laptop on power supply all the time(even when battery is at 100%)?

Yes.
I do it all the time with all my computers except the one I'm using to in a trial to see if limiting the charge makes any difference [the interim results show that it does not make any difference].
I have a four year old battery that has been at 100% for practically its whole life and it still achieves its design charge capacity.

Discussion of the subject suffers from lack of data.

Denis

zebal · Jun 18, 2023

gradeabra said:
I would like to know is it safe to use laptop on power supply all the time(even when battery is at 100%)?

The only thing that is not safe is stop charging your laptop before it reaches 100%

It doesn't matter at which battery percentage you start charging, what matters is that once you start charging you must wait until it's 100% and only then unplug the cable.

Second important rule is that when you buy a new laptop you must charge it to 100% prior first power on.

These 2 rules will make your battery live much longer.

edit:
I forgot 3rd rule, never drain your battery to 0%

gradeabra · Jun 18, 2023

zebal said:
The only thing that is not safe is stop charging your laptop before it reaches 100%

It doesn't matter at which battery percentage you start charging, what matters is that once you start charging you must wait until it's 100% and only then unplug the cable.

Second important rule is that when you buy a new laptop you must charge it to 100% prior first power on.

These 2 rules will make your battery live much longer.

edit:
I forgot 3rd rule, never drain your battery to 0%

Not quite possible for the 2nd rule. Because when you purchase it, they will on it to do the testing and setup.. And the laptop may not be at full battery life at that time. For my first charge, i actually use it while it is charging at the same time. Isit still fine?

Try3 · Jun 18, 2023

gradeabra said:
while it is charging at the same time. Isit still fine?

Yes.

Denis

zebal · Jun 18, 2023

gradeabra said:
Not quite possible for the 2nd rule. Because when you purchase it, they will on it to do the testing and setup.. And the laptop may not be at full battery life at that time. For my first charge, i actually use it while it is charging at the same time. Isit still fine?

I bought some 6 laptops so far in my life and never got fully charged battery.
Same applies to wireless mouse with integrated battery, you never buy it with 100% full battery.

Biggest mistake is to immediately turn on your laptop without charging because you don't know the actual level, if it's low or you forgot to charge you may drain your battery which is not good for some battery types, especially not new ones.

The state of charge of your lithium-ion batteries is an important factor to consider before you store or recharge your supplies. Recharging and discharging your battery from 100% to 0% is not an ideal way to maintain the lifespan and effectiveness of your battery. Using partial-discharge cycles and not charging to full capacity can keep your lithium-ion batteries working better for longer.

On the other hand, keeping a Li-ion battery in storage for long periods of time can also reduce the lifespan and battery capacity. Check with the battery manufacturer for further details about the ideal state-of-charge for your stores of Li-ion batteries.

Safety Tips for Charging Li-ion Batteries

We highlight key safety tips for charging Li-ion batteries to reduce the risk of thermal runaway, fire and explosion in your workplace.

blog.storemasta.com.au

I always charge my battery to full prior first use, it's a habit which I've read in instructions with my first laptop and since then always follow this advice.
The quote above also states that leaving batteries in storage for long time is not good, I didn't know this honestly but may be one reason why you need to charge new battery to full prior use.

gradeabra · Jun 18, 2023

I recall the laptop i purchase was at 30%+. I went home start charging and use it at the same time. Isit fine?

Try3 · Jun 18, 2023

zebal · Jun 18, 2023

gradeabra said:
I recall the laptop i purchase was at 30%+. I went home start charging and use it at the same time. Isit fine?

I told you and here is it again for reference:

When you buy a new laptop, you’ll want to charge your battery for 24 hours to make sure that it gets a full charge on its first go. Giving your battery a complete charge during its first charge will prolong its life

https://www.hp.com/us-en/shop/tech-takes/how-long-should-i-charge-hp-laptop-battery

You can search sites of other laptop manufactures and will find same thing, for instance:

Please use the included Asus AC Adaptor and Asus cable (If applicable) to give the devices a proper charge for a minimum of 8 hours or overnight.

Very important best practice guide for first time usage on our Asus Android mobile devices (cellular phones & tablets). | Official Support | ASUS Global

Therefore no, it's not fine but it's not a big issue either, just make sure you don't stop charging before it's 100% in the future.

badrobot · Jun 18, 2023

I always have my work laptop plugged in during the day while I am working. I don't worry about plugging and unplugging it after work. I have it plugged in to a smart plug that is set to turn on at 8am and cut the charger off at 6pm.

James · Jun 18, 2023

Keeping your laptop on charge constantly is one of the worst things you can do for battery health - @badrobot has reminded me of the existence of timer plugs, so thank you

Here's a good example: https://bit.ly/ef-timer-plug-gradeabra

badrobot · Jun 18, 2023

James said:
Keeping your laptop on charge constantly is one of the worst things you can do for battery health - @badrobot has reminded me of the existence of timer plugs, so thank you

Here's a good example: https://bit.ly/ef-timer-plug-gradeabra

I got two of these which I got from Walmart a very long time ago for around $10 each. I mainly use it for charging phones and tablets. I just press the number of hours and then forget about it until I needed to charge again.
But recently, I've been also using smart plugs that automatically turns off after a few hours.

As for keeping your laptop plugged in for a long time, there is no one answer for it. Different manufacturers have different recommendations. But modern laptops are designed to keep your battery healthy even when plugged in for a long periods of time. It stops charging at certain battery percentage.

cereberus · Jun 18, 2023

zebal said:
The only thing that is not safe is stop charging your laptop before it reaches 100%

It doesn't matter at which battery percentage you start charging, what matters is that once you start charging you must wait until it's 100% and only then unplug the cable.

Second important rule is that when you buy a new laptop you must charge it to 100% prior first power on.

These 2 rules will make your battery live much longer.

edit:
I forgot 3rd rule, never drain your battery to 0%

Where is your proof.

There is no evidence whatsoever to support this.

This is just twenty+ year old advice (if you could even call it that) regurgitated.

zebal · Jun 18, 2023

cereberus said:
Where is your proof.

There is no evidence whatsoever to support this.

This is just twenty+ year old advice (if you could even call it that) regurgitated.

There are several types of batteries, for which type of battery exactly you need proof?

The OP didn't want to fill in their "My Computer" info as asked so my comments so far are generic and not specific to any battery type.

Try3 · Jun 18, 2023

I suspect that the requested proof relates to the various forms of lithium-based batteries.
There is no publicly-available data to support any particular management policy.
Much of the unsubstantiated "guidance" on the subject is so similar to guidance for previous battery technologies that its authors might simply have done a global replace of NiCd with lithium-based.

All the best,
Denis

James · Jun 18, 2023

I don't know what laptop batteries are like these days - my last laptop was from 2017 - and things seemed to have changed a lot since then. I had that laptop plugged in all of the time, as I used it lid-shut with monitor 99% of the time, and the 1% of the time when I used it away from the desk the battery had depleted enough for it to be an experience of watching the percentage go down.

regarding laptop charging

Member

My Computer

Well-known member

My Computer

Well-known member

My Computers

Well-known member

My Computer

Member

My Computer

Well-known member

My Computer

Well-known member

My Computer

Member

My Computer

Well-known member

My Computer

Well-known member

My Computer

Member

My Computer

Well-known member

My Computer

Well-known member

My Computer

Well-known member

My Computers

Well-known member

My Computers

Well-known member

My Computers

Well-known member

My Computer

Well-known member

My Computer

Well-known member

My Computer

Well-known member

My Computers

Similar threads