No, it's not true. A genuine myth. The charging systems in modern laptops will not overcharge or damage the battery at all. What will shorten the life of the battery is heat, so it's worthwhile getting a fan assisted cooling pad to keep not just the laptop cool but the battery as well.I sometimes hear these urban myths about pc's, such as recent one that leaving a charged laptop plugged in will ruin the battery. Is this true?
That's for a NiCad battery that has a 'memory', Li-Ion batteries do not suffer from this problem and don't need discharging every few days. See this: https://batteryuniversity.com/learn/article/do_and_dont_battery_tableBattery life may be shortened through improper maintenance. To optimize the life
and improve its performance, fully discharge and recharge the battery at least
once every 30 days. We recommend that you do not remove the battery yourself.
It's clear from lab tests that there is a lot of truth in this (see https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries), although I've seen it described as 'never discharge below 20% and never charge more than 80%'.Just interested in your thoughts on this.40-80 rule: New tip for extending battery life
Extend the life of a lithium cell by not topping it off. The 40-80 rule can extend the life of your battery, but be careful to keep it out of the heat.www.csmonitor.com
I thought this was the case... not sure why it's in the manual.. even has pictures of how to change settings stop the laptop powering down.That's for a NiCad battery that has a 'memory', Li-Ion batteries do not suffer from this problem and don't need discharging every few days. See this: https://batteryuniversity.com/learn/article/do_and_dont_battery_table
I've set flexicharge to 40%min 80%max.. Basically, when the battery drops below 40 it charges up to 80. You could use any values you like really.Can anyone share how the flexicharge on the BIOS work? I saw that option, but couldn't understand as it has both minimum and maximum values. I do understand what the maximum value is for, but what would be the minimum charge?
What I really wanted to do was to never charge my battery over 80 or 90%, but not sure on how to achieve this. I don't want the laptop to discharge the battery frequently by its own, as I understand that this will only make the battery cycle count go higher and decrease the full capacity by a bit each time.
I've not heard of 'flexicharge' before, it does rather sound like a way to manage the 20% (or 40%) to 80% charge limits?Can anyone share how the flexicharge on the BIOS work? I saw that option, but couldn't understand as it has both minimum and maximum values. I do understand what the maximum value is for, but what would be the minimum charge?
What I really wanted to do was to never charge my battery over 80 or 90%, but not sure on how to achieve this. I don't want the laptop to discharge the battery frequently by its own, as I understand that this will only make the battery cycle count go higher and decrease the full capacity by a bit each time.
I've learned something new today!That's exactly what it does.. built in to the bios so it just controls the charging which may increase battery life.. and the cost of a shorter usage cycle when running on battery.
This is why cars do not utilise the entire battery and although a battery may say its 75kw on a car, it may only use about 60 to 65 of that as the management system built in allows for a car to never fully charge or fully diminish its battery - ie it will probably only ever get to about 5% or 10% charge remaining through to 90 / 95% "fully charged" - as a driver though you will only ever be told its 0 to 100% - and also the reason why when you rapid charge the car it will only ever rapid charge to 80% and then start to slow right down as it nears the 100% so called charge.It's my belief however that the biggest gains with this approach are to be found with the bigger (and more expensive) Li-Ion batteries such as those found in cars.
Sorry, I still don't get the minimum value. If the laptop is plugged in, then how is it ever going to reach 40%? Or if it's only on battery, how will it charge itself again after reaching 40%?I've set flexicharge to 40%min 80%max.. Basically, when the battery drops below 40 it charges up to 80. You could use any values you like really.
Interesting... So what will happen if I put 80% minimum and maximum? It will stay at 80% all the time? That's what I want.It will not charge until pkugged in and it drops to 40% otherwise the charger just keeps it at the same level when plugged in.
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