Author Topic: charger shut off device - looking for  (Read 1091 times)

Online ckmk47

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charger shut off device - looking for
« on: April 30, 2023, 01:13:48 PM »
I'm interested in getting something that will shut off charging after my device is finished charging.
I want to keep  my laptop plugged in, but I want to not kill its battery.
What do I use?
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Offline amaaretz

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Re: charger shut off device - looking for
« Reply #1 on: April 30, 2023, 01:14:55 PM »
Not necessary for newer devices. Best to use the charger that came with the device, but any high-quality charger will work.

Online ckmk47

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Re: charger shut off device - looking for
« Reply #2 on: April 30, 2023, 01:20:26 PM »
Thanks.
Everyone else agree with him?
The laptop battery won't get fried if it's kept plugged in?
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Offline joeberg

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Re: charger shut off device - looking for
« Reply #3 on: April 30, 2023, 02:13:07 PM »
Thanks.
Everyone else agree with him?
The laptop battery won't get fried if it's kept plugged in?
Not necessary for newer devices. Best to use the charger that came with the device, but any high-quality charger will work.
Name checks out.
I have had laptop batteries fried by keeping plugged in with the charger it came with.

Offline AMH

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Re: charger shut off device - looking for
« Reply #4 on: April 30, 2023, 02:15:37 PM »
https://www.howtogeek.com/124715/should-i-leave-my-laptop-plugged-in-all-the-time/

Donít Worry About Overcharging Your Laptopís Battery
There is a persistent myth that you can overcharge a laptop battery and, through that overcharging, damage the battery. There are many ways to decrease the lifespan of your battery (like leaving your poor laptop to roast in your car on a hot day), but overcharging isnít one of them.

Even ancient laptops have built-in protection against overcharging and potential damage caused by packing too much energy into a battery that canít hold it all. You can certainly damage a laptop with a cheap out-of-spec or damaged charger, but plugging it in with the original charger or a high-quality replacement wonít turn your battery into a lithium-ion fire bomb.

When your laptop battery reaches 100%, it stops charging, and it wonít resume charging until the battery level drops below 100% again. While this can lead to a pattern of the battery discharging slightly and then getting topped off again (which can degrade the battery over time), it wonít overcharge the battery and damage it.

Take Advantage of Laptop Smart Charging Features
Many modern laptops support smart charging features designed to protect the laptopís battery and extend its life.
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Offline amaaretz

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Re: charger shut off device - looking for
« Reply #5 on: April 30, 2023, 02:20:00 PM »
Name checks out.
I have had laptop batteries fried by keeping plugged in with the charger it came with.
I don't have a low-effort snarky comment to make about your username, but I can compensate with facts instead of a single anecdote:

I work in software. Modern laptops and chargers are regulated and will not kill your battery if plugged in. You can consult the revolutionary google.com website to pretend to have researched the matter before opining.

To address your single anecdote: You are either using an old device, generic charger, or have it plugged into a screen or dock while plugged into the charger.

Offline Spoon

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Re: charger shut off device - looking for
« Reply #6 on: April 30, 2023, 03:12:31 PM »
I don't have a low-effort snarky comment to make about your username, but I can compensate with facts instead of a single anecdote:

I work in software. Modern laptops and chargers are regulated and will not kill your battery if plugged in. You can consult the revolutionary google.com website to pretend to have researched the matter before opining.

To address your single anecdote: You are either using an old device, generic charger, or have it plugged into a screen or dock while plugged into the charger.

Does this apply to phones as well?
How new is considered "newer"?

Offline amaaretz

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Re: charger shut off device - looking for
« Reply #7 on: April 30, 2023, 03:17:43 PM »
Does this apply to phones as well?
How new is considered "newer"?

Yes, it does. With phones, to play it safe I'd say anything within the last 3 years for reputable Android phones, and 5 years for iPhones. Again, with a proper charger. The cheap generic ones don't regulate themselves.
I forgot the term for this "regulation". If anyone can recall the term so we know what to look for when buying a charger, please enlighten us.

Offline joeberg

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Re: charger shut off device - looking for
« Reply #8 on: April 30, 2023, 03:26:42 PM »
I don't have a low-effort snarky comment to make about your username, but I can compensate with facts instead of a single anecdote:

I work in software. Modern laptops and chargers are regulated and will not kill your battery if plugged in. You can consult the revolutionary google.com website to pretend to have researched the matter before opining.

To address your single anecdote: You are either using an old device, generic charger, or have it plugged into a screen or dock while plugged into the charger.
I'm sorry. Was just as you said low effort. I apologize. As to the facts I wasn't aware of this, was coming from anecdotal evidence that must have been wrong.

Offline amaaretz

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Re: charger shut off device - looking for
« Reply #9 on: April 30, 2023, 03:30:24 PM »
I'm sorry. Was just as you said low effort. I apologize. As to the facts I wasn't aware of this, was coming from anecdotal evidence that must have been wrong.
No worries, and thank you.

Online ckmk47

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Re: charger shut off device - looking for
« Reply #10 on: April 30, 2023, 04:29:31 PM »


To address your single anecdote: You are either using an old device, generic charger, or have it plugged into a screen or dock while plugged into the charger.
I intend to use my laptop to replace my desktop.  I wanted to keep my big screen connected. (And IDK what else will remain connected.)
Must I detach it each time I stop using the computer?
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Offline amaaretz

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Re: charger shut off device - looking for
« Reply #11 on: April 30, 2023, 04:35:21 PM »
I intend to use my laptop to replace my desktop.  I wanted to keep my big screen connected. (And IDK what else will remain connected.)
Must I detach it each time I stop using the computer?
I also use a laptop instead of a desktop.

Screens are usually not an issue, as most of them won't draw any power from the laptop they are connected to. Only a few fancy ones that connect via USB-c have certain features that will draw power from the laptop.

In terms of a dock, the cheap ones like I have don't plug into a wall outlet. Instead they just plug into a computer, and they draw power from the computer. If you have a dock like that then while you keep the laptop plugged into a charger, The laptop will simultaneously draw power from the charger and supply power to the dock. I don't have any research on this, but in my experience that has degraded my battery significantly. Based on what I do know, this does make sense. Since those two simultaneous actions will heat up the battery immensely, which in the long term causes it to degrade. So if you're going to use a dock, you either have to unplug the dock whenever you leave your desk or get a more expensive dock that plugs into the wall and draws power from there.

Offline Yaakov7

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Re: charger shut off device - looking for
« Reply #12 on: April 30, 2023, 04:38:05 PM »
the No. 1 killer of batteries is heat, but if you are looking for something that stops and starts charging whilst keeping it plugged in why not get a timer on the plug and set it for a few hrs per day
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Offline lcm

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Re: charger shut off device - looking for
« Reply #13 on: April 30, 2023, 05:19:32 PM »
I'm interested in getting something that will shut off charging after my device is finished charging.
I want to keep  my laptop plugged in, but I want to not kill its battery.
What do I use?
Check out chargie, definitely works for phones, not sure about laptops

Offline LoLo

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Re: charger shut off device - looking for
« Reply #14 on: April 30, 2023, 05:25:49 PM »
Have this feature on my Lenovo laptop.

(quite a few years old, I assume all newer ones have it as well.)



Online ckmk47

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Re: charger shut off device - looking for
« Reply #15 on: April 30, 2023, 05:49:16 PM »
Thank you @amaaretz and everyone else for this informative discussion.
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Offline lcm

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Re: charger shut off device - looking for
« Reply #16 on: April 30, 2023, 09:49:37 PM »
Check out chargie, definitely works for phones, not sure about laptops

Thank you @amaaretz and everyone else for this informative discussion.

They are actually rolling out one for laptops:
https://chargie.org/product/chargie-for-laptops-preorder/

Offline myi

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Re: charger shut off device - looking for
« Reply #17 on: May 02, 2023, 12:40:34 AM »
Does this apply to phones as well?
How new is considered "newer"?
I saw they implemented something similar on the new S23 series from Samsung. Stopping the charge at 85%.



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Offline Yo ssi

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Re: charger shut off device - looking for
« Reply #18 on: May 02, 2023, 10:20:39 AM »
I saw they implemented something similar on the new S23 series from Samsung. Stopping the charge at 85%.



Software update, most devices supported.
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Offline Yisroel Tech

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Re: charger shut off device - looking for
« Reply #19 on: May 11, 2023, 10:46:19 AM »
Not necessary for newer devices. Best to use the charger that came with the device, but any high-quality charger will work.
I believe there are two distinct aspects to this discussion that were a little bit confused here, leading to some conflicting information.

Firstly, there used to be the concern of overcharging a battery. Overcharging, which involves supplying additional power to a battery even when it is already fully charged, can lead to overheating and ultimately result in battery failure. This problem - as you correctly noted - has become exceedingly rare in modern times due to protections in the devices and power adapters.

On the other hand, as mentioned by others, there remains a separate issue related to the constant discharge and recharge cycles that batteries undergo. This process gradually deteriorates the battery over time, as each battery has a limited number of charges it can sustain before experiencing capacity loss and other related issues. While this concern is considerably less significant than the risk of overcharging, it is still worth considering (and try some of the mitigates available as mentioned and linked.)