Why the battery is not worth keeping

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Guide
Dec 10, 2025

Is It Bad To Keep Laptop Plugged In When Fully Charged?

This means that the charger will continue to supply a small amount of power to the battery to keep it topped up, but it won''t overcharge the battery. This is a normal and safe process, and it won''t damage the battery. However, it''s worth noting that some older laptops may not have this trickle charge feature, and leaving them plugged in

Guide
Sep 25, 2025

The truth about electric car battery degradation

But is battery degradation in electric cars (EVs) fact or fiction? To find out, each year we use our car reliability survey to ask thousands of EV owners about the condition of

Guide
Oct 09, 2025

Does keeping a laptop battery at 100% all the time damage it?

Whether you keep it at 100%, try and keep it between 50% and 80%, your battery is ageing and losing capacity just a tiny tiny bit every time it is charged and discharged. There is no battery in existence which doesn''t degrade over time. Can''t really say how effective it is, but if you''re concerned, it''s worth checking yours to see if it

Guide
Dec 23, 2025

Do you bother with more expensive car battery brands?

Why is this, and is it worth paying more? MattyD803. Lion stuff is a bit crap by all accounts on the internet- but keeping a battery in a good state of charge and not overworking it is as

Guide
Oct 29, 2025

Why don''t people keep a spare car battery in their car?

Some do in specialized circumstances. My off-road toy has two batteries in it, with one on an isolator with its own fuse panel. That allows the charging system to charge both batteries but only run accessories (lights, winch, etc) off the second one.

Guide
May 02, 2026

Getting low battery message even though my laptop is always

Try re-installing the Battery drivers and see if that helps. 1. Press Windows key + R. This will open Run. Alternatively, you can go to Start and search for ''Run'' 2. In Run dialog box, type devmgmt.msc and hit Enter. 3. Expand Battery. 4. Right click on the Microsoft ACPI-Compliant Control Method Battery and click on Uninstall. 5.

Guide
Oct 22, 2025

Is it worth getting a battery replacement and keeping this

It''s just not worth investing in a battery replacement (in chance the back glass is broken in the process) So I''ll probably just spend the money and get the S24 ultra instead of trying to make this phone last another 2 years. of death" problem,this made me change,sadly didn''t fix but if you don''t have restarting and similar problem def

Guide
Apr 16, 2026

Debunking the 80/20 limits on EV battery charging:

It is worth noting here that below where zero is shown on the dash, manufacturers actually build a floor/reserve into the battery to prevent over-discharging. Again though, the advice is (just like not always charging to 100% or going below ¼

Guide
May 21, 2026

Is solar battery storage worth it?

If your primary motivation for getting a solar battery is to save money, it may not be worth it until the price of solar batteries comes down (which it should, as the technology evolves and improves), or if the price of electricity rises steeply. Try to keep your battery in a cool, shaded spot in your house, and consider a cooling system if

Guide
Dec 17, 2025

Is anyone *not* regretting their 15 Pro? : r/iphone

The new chip is worth. Not just battery. The battery is still good. The 15pro max compares to the 13 pro max which is the king of battery. If you want solely battery life - go with the regular 15 plus (yes it has better battery life) Regarding battery you should keep in mind that the battery life people get is not really reliable in the

Guide
Feb 25, 2026

Why does it seem like battery technology is not keeping up with

There is plenty of research going on into battery technology because they are so important to our industry now and looking forwards (electric car industry). Its worth remembering that battery life is not the only factor in what makes a good battery, factors like recharge time and lifetime of the battery are also being improved upon

Guide
May 06, 2026

r/explainlikeimfive on Reddit: ELI5: Why is it bad to keep an

I''ve heard conflicting information about whether it''s safe to keep an electronic device plugged in all the time. Most recently I''ve heard it depends on the type of battery being used by the device?

Guide
Aug 27, 2025

Will just starting a car and leaving it on charge the car''s battery, or

it depends entirely on how low your battery is and how strong your alternator is. a good 20-30 minute drive on a freeway is probably sufficient. if this car is going to continually sit for long periods of time I would recommend investing in a trickle charger. they can be found for around $25 and will maintain your batteries charge over long periods of time.

Guide
Jun 02, 2026

Is it better to keep unused laptop always plugged in or let it

99.999% of computer systems with a 21st century software implementation have battery management tools and techniques that far outweigh any sort of human intervention in terms of best practice/most milage for your components. this includes the battery. keep it plugged in. most importantly, for your peace of mind. it is the industry default for

Guide
Mar 19, 2026

What Happens if Li Batteries Are Not Used for a Long Time?

Leaving a lithium battery completely uncharged for a long time can be detrimental. If a lithium battery is left in a discharged state for too long, it can fall into a deep

Guide
Sep 25, 2025

Why don''t car batteries last as long as they used to?

RACQ''s Team Manager of Technical Training and Patrol Operations Howard Strasser explained the main drivers behind the reduced lifespan of batteries in modern cars and how you can keep your battery in good condition.

Guide
Mar 14, 2026

Is protective battery worth it ? : r/samsung

If you can last a day with 85% battery then it is certainly worth it as it helps to reduce the battery''s deterioration. Some people simply need the full 100% because they use their phone heavily in a day so then of course charge it to 100% but know that the battery will deteriorate faster in

Guide
Mar 05, 2026

To save battery in the long run, should I keep the Steam Deck

Technically if you keep it plugged in it''s less battery cycling. If it''s convenient to be plugged in, you''ll get that many more charge cycles out of it over its life. But you also might retire it before you''ve exhausted the battery life. Personally I have it plugged in ''cause why not. But out/about certainly wouldn''t.

Guide
Jan 04, 2026

Is it bad to keep a laptop plugged in all the time?

What will happen is the battery won''t hold a charge, even though the software indicates the battery hasn''t even had 1 full cycle. This is why many major manufacturers recommend once a month doing a full discharge (running the battery all the way down) and then a full re-charge.

Guide
May 31, 2026

Does purposely letting my laptop ''drain'' the battery actually help it

As a result, extending battery life is a matter of keeping it cool (esp. not continuous charging, which generates a lot of heat), and avoiding repetitive heavy discharge/charge cycles. Additionally, as cells wear, their "full" charge will diminish and keeping a battery "topped up" will result in slight overcharging of the cells as the controller adapts to their slowly decreasing peak

Guide
Aug 31, 2025

ELI5: How does charging a phone beyond 80% decrease the battery

The max capacity of a battery is often not what the battery is rated at, it''s set at the level that retain the maximum amount of charge for the rated lifespan of the battery for the rated number of charge cycles. and the phone shuts down before the battery is actually depleted. It might be marginally beneficial to keep your battery between

Guide
Aug 24, 2025

Car Battery Myths: Fact or Fiction

Myth 1: I haven''t used my car much so my battery is fine. Myth definitely busted. Even if you haven''t used your car for a while, the battery is still being drained by your car''s

Guide
Nov 30, 2025

To those who''ve replaced an iPhone battery, have you really

They even offered discounted battery replacement for customers a couple of years ago. I dunno why people are saying a new battery doesn''t impact performance. Sample size of 1 but my iPhone 6s went back to its snappy self after 5 yrs of use once I replaced the battery at an Apple store. Worth the $50 for a fresh lease of life.

Guide
Jan 21, 2026

Why You Shouldn''t Waste Time (or Money) Worrying

Battery health is important, right? After all, our portable devices depend on them. These days, though, it''s actually not worth stressing about their health as much as you might think.

Guide
Sep 03, 2025

Does anybody use the "protect battery" feature? Or do

Well, it helps a little. Charging to 100% causes strain on the battery, sure, so keeping it at 100% keeps the battery stressed. Letting it charge to 100% only right before you wake up means it''s not sitting at 100% and being stressed all night.

Guide
Nov 25, 2025

Why does battery technology suck? What''s stopping the progress

That cell phone cell is 3.7v, while the AA is only 1.2v (on average, keep in mind the charge curve). Multiply the mAh by the volts to get the watt-hours of the battery, in which case the cell phone holds 5550mWh and the AA holds 3000mWh. The search for a better battery is just as much about a higher voltage battery as it is for a higher

Guide
Dec 08, 2025

What happens when a battery is not used for a long time?

When a battery is not used for a long time, several things can happen that may cause damage to the battery and affect its performance when you eventually need to use it.

Guide
Oct 07, 2025

eli5: Why do regular batteries last for so long whereas

The reason for rechargeable batteries not being as great is the concentration gradient - the electron slush inside the battery is designed that you can put all the electrons back into the

Guide
Aug 02, 2025

Is it worth using a battery maintainer if it''s not plugged in

A battery tender should be plugged in and connected constantly, or as much as possible. They don''t work great as chargers if the battery is completely dead, but they''re perfect for just keeping the battery topped up if you connect it every couple weeks.

Guide
Sep 13, 2025

Battery Protect (Limit Charge to 85%). Does it work? : r/samsung

The phones have such good battery life to begine with I''d say it''s worth it even if it''s a super minimal savings. I have a old note 10+ and recently turned it on. My battery already last a full day and since I charge it every night anyways there really isn''t any reason to not have it on.

Guide
Jan 06, 2026

Here''s the Truth Behind the Biggest (and Dumbest) Battery Myths

Yes, charging your phone overnight is bad for its battery. And no, you don''t need to turn off your device to give the battery a break. Here''s why.

Guide
May 28, 2026

So Why Does It Matter Keeping Tesla Battery Between 20%-80

Now, why not just keep it at 100%? The answer is simple. We do everything we can to not stress the battery. Heat puts stress on the battery. Leaving the charge at 100% puts stress on the battery, the longer it is there the more stress. Discharging very low puts stress on the battery, the lower it is the more stress.

Guide
Jun 22, 2026

Is Limiting Battery Charging to 80% worth?

Hi Ganapathy, I am Dave, I will help you with this. Yes, if you have the option to limit you battery charge limit to 80% and you do use your laptop plugged in most of the time then that setting will prolong the lifespan of your battery.

Guide
Sep 05, 2025

Who says keeping your MacBook plugged in all the

So they sit with the battery not receiving a charge for an extended period of time which leads them to swell. I had the same issue happen with an expensive battery in one of my vehicles. Didn''t drive the vehicle for a year and forgot to

Guide
Aug 29, 2025

is it better to charge to 80% or 100%? : r/samsung

Your reasoning about the fact that your battery will hit 85% in, let''s say 3 years, and that you will get the same battery life during one day is understandable, but if you charge it at 85% instead, you can still decide to stop doing that after a few years when the battery degrades to the point that those 85% of battery is not enough for your needs (meaning you can switch to charge it to 100%).

Guide
Nov 24, 2025

How to Maintain Car Battery When Not in Use: Tips for Long

Discover essential tips for maintaining a car battery when not in use. Learn how to keep it charged with simple routines like occasional running, using a trickle charger, and

Guide
Jan 28, 2026

Do you keep the battery between 20% and 80%, similarly to a

Likewise. The battery management on modern devices has mostly taken the ability to damage the battery away from the user. Pretty much the only way you''ll hurt the battery is with frequent high battery use.

Guide
Oct 19, 2025

Is battery protection worth it? : r/samsung

No it''s not worth it unless you''re planning to use the phone for the rest of your life. The amount of battery degradation over 2 years is so negligible, you would have to be counting the minutes to see a difference. But the real issue is that

Guide
Nov 06, 2025

Is keeping laptop plugged @ 100% bad for longevity of battery?

You can''t just have a lithium ion battery sit around for a year and then expect it to work properly, it wont. But they do loose less charge in that range but not cycles. Its not worth doing anything special to maintain your battery. Li-ion''s are dead easy to keep healthy, you just keep them charged.

6 Frequently Asked Questions about “Why the battery is not worth keeping”

Do batteries deteriorate if not used often?

Yes, batteries can deteriorate if not used frequently. When a battery is not used, it can gradually lose its charge over time. This process is known as self-discharge. Self-discharge occurs because the battery's internal chemical reactions continue even when the battery is not being used.

What happens if a battery is not used long-term?

The main concern with long-term non-usage of batteries is their self-discharge rate. Batteries naturally lose their charge over time, even if they are not being used. This self-discharge rate varies depending on the type of battery, but it is generally higher in rechargeable batteries compared to non-rechargeable ones.

Can a battery die out if not used for a long time?

Yes, a battery can lose its charge and die out if it is not used for a long time. When a battery is not used or left unused for an extended period, it can gradually lose its capacity to hold and provide power. Batteries have a natural self-discharge rate, which means they slowly deplete their charge over time, even when not in use.

What happens if a rechargeable battery is not used for a long time?

If a rechargeable battery is not used for a long time, it may lose its charge more quickly and may even become completely discharged. When a rechargeable battery completely discharges and is not recharged for a long time, it can become damaged and may not hold a charge anymore.

Are car batteries a myth?

On the surface, car batteries are pretty simple – you plug them in and your car fires up when you turn the key. However, there are loads of myths out there about these handy little electricity bricks. We've teamed up with our friends at Yuasa to put eight of the most popular car battery myths to the test. Myth definitely busted.

Can a battery lose its charge if not used?

A battery can lose its charge even if it is not being used. This is because batteries have internal chemical reactions that continue to occur, even when they are not actively powering a device. These reactions gradually drain the battery's energy over time.

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