Is there a good reason why we can't tell our devices to charge the battery to say 70% and then internally disconnect the battery, so it's neither charging nor discharging?
Unplug Your Laptop Now, or It Will Stay Plugged in Forever
11–20 of 73 posts
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#12Please explain like I'm five: if continuously charging and drawing power at 100% hurts my laptop's battery, why doesn't the laptop bypass the battery circuitry, keeping it idle, and use the incoming juice directly?
So you'll buy a new computer in 2 years when the battery is dead.
I'm boycotting laptops until this gets fixed
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#13Please explain like I'm five: if continuously charging and drawing power at 100% hurts my laptop's battery, why doesn't the laptop bypass the battery circuitry, keeping it idle, and use the incoming juice directly?
If you blow on this balloon, it'll inflate. If you inflate it a lot and then let it deflate it has all of these stretch marks. Those stretch marks are now a permanent defect.
The same happens with your battery. If you charge it to 100% a lot and leave it there then it gets "stretch marks" and the permanent defects affect how long the battery lasts.
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#14Is there a good reason why we can't tell our devices to charge the battery to say 70% and then internally disconnect the battery, so it's neither charging nor discharging?
Some laptop manufacturers include this mode. At least I have it in lenovos (not exatctly 70%, they allow cap at 80%), and have seen in some samsungs years ago.
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#15Please explain like I'm five: if continuously charging and drawing power at 100% hurts my laptop's battery, why doesn't the laptop bypass the battery circuitry, keeping it idle, and use the incoming juice directly?
macOS actually does that somehow indeed. Not exactly, but it does prevent charge when it “guesses” the computer will stay plugged in for a long time based on previous usage.
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#16Is there a good reason why we can't tell our devices to charge the battery to say 70% and then internally disconnect the battery, so it's neither charging nor discharging?
Dell laptops have had such a feature literally for a decade now
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#17Is there a good reason why we can't tell our devices to charge the battery to say 70% and then internally disconnect the battery, so it's neither charging nor discharging?
ThinkPad has this. My battery only charges to 75% and it must drop to 50% before it starts charging again. You can configure any value for either setting with TLP.
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#18No one:
Gizmodo: "Somewhere down the line, many of us got the idea that our laptops should always be plugged in to improve their performance."
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#19Is there a good reason why we can't tell our devices to charge the battery to say 70% and then internally disconnect the battery, so it's neither charging nor discharging?
Some laptop manufacturers include this mode. At least I have it in lenovos (not exatctly 70%, they allow cap at 80%), and have seen in some samsungs years ago.
Where do you set this? OS, BIOS or some Lenovo control software?
Re: Unplug Your Laptop Now, or It Will Stay Plugged in Forever
#20It's rather unfortunate that many laptops still do this to their batteries. The last time I bought one I made sure it has a smart charging feature: It charges the battery to a configurable upper level, then stops charging until the battery has dropped to another configurable lower level. Defaults are at 80% and 20%.
Also, the discharge takes a very, very long time when plugged in, as it feeds directly from the power supply.