Should I charge my iPhone to 100%?


Apple recommends, as do many others, that you try to keep an iPhone battery between 30 and 80 percent charged. Topping up to 100 percent isn't optimal, although it won't necessarily damage your battery, but letting it regularly run down to 0 percent can prematurely lead to a battery's demise.Charging your phone to 100% is not extremely problematic, so you can do it daily or occasionally if you have strenuous work/commute hours or traveling schedules. However, keeping it at 100% for long, i.e., still charging after it is maxed out, is a problem. It puts more stress on the battery and can affect its overall lifespan.

Should you always charge an iPhone to 100%?

Therefore, we recommend the following: Do not fully charge or fully discharge your device's battery — charge it to around 50%. If you store a device when its battery is fully discharged, the battery could fall into a deep discharge state, which renders it incapable of holding a charge.

Should you charge iPhone above 80%?

Charge it overnight every night and you'll be fine. It's true that charging above 80% can shorten total lifespan, but the effect is very small. If you don't charge it to 100%, you run the risk of not having enough charge for the day.

Is it okay to charge my iPhone to 90?

To get started, we do want to let you know that charging your iPhone from 90% to 100% shouldn't an affect on your iPhone battery charge cycles as a charge cycle is counted when your iPhone charges a total of 100%. For more details, check out the following links below: iPhone Battery and Performance – Apple Support.

Is it better to charge to 80 or 100?

No batteries last for ever, of course, but staying proactive and aiming for 80% charge can help them last longer. This is because the battery finds it easier to charge when it is slightly empty, rather than nearly full, and therefore has less stress within its charging cycle.

How to stop charging at 80 on an iPhone?

With iPhone 14 models and earlier, go to Settings > Battery > Battery Health & Charging and turn off Optimised Battery Charging. With iPhone 15 models, to choose between Optimised Battery Charging, 80% Limit and None, go to Settings > Battery > Charging Optimisation and choose an option.

What is the 40 80 rule on iPhones?

But that's not true. According to the “40-80 Rule”, lithium-ion batteries, like the ones inside iPhones, work best when they are between 40% and 80% of their capacity. When they are too full or too low, they experience more wear and lose their ability to hold a charge over time.

Should I unplug iPhone at 80%?

When possible, unplug your iPhone after it has fully charged. By default, your iPhone uses Optimized Battery Charging. To improve your battery's lifespan, Optimized Battery Charging reduces the time that your iPhone spends fully charged.

What is the 30/80 rule for batteries?

Understanding the 30 80 Charging Rule By avoiding letting your battery drop below 30% or exceed 80% charge, you can reduce strain on its cells and prolong its overall capacity.

What kills iPhone battery health?

It's especially important to avoid exposing your device to ambient temperatures higher than 35° C (95° F), which can permanently damage battery capacity. That is, your battery won't power your device as long on a given charge. Charging the device in high ambient temperatures can damage it further.

Is 100 percent battery health good?

Batteries typically lose efficiency over time, which explains why an old phone battery will hold less and less charge. Optimal phone performance is between 100% and 80% maximum capacity.

At what percentage should I charge my iPhone?

Is charging an iPhone to 100% bad?

No, charging your iPhone from 75% to 100% is not a bad idea. It IS a bad idea to frequently allow it to get to zero, however. The iPhone has circuitry to protect it from overcharging. There is machine learning that handles this.

Is charging to 90% good?

There are two reasons: charging performance and battery longevity. Most of the time you should only charge an EV to 80% because charging rates slow down dramatically past the 80% mark. And two, the long-term health of your vehicle's battery pack is improved when kept below 100%.

Is charging iPhone above 80 bad?

You want your battery to last for as long as possible before you have to replace it, but the best way to do that is to only charge the battery to 80 percent. Say your phone battery normally lasts for around ten hours. Limiting the battery's charge to 80 percent gives you only eight hours.

Is 80 percent battery health good for iPhone?

Apple considers any iPhone with a battery capacity of 80% or above to be in optimal condition. In fact, Apple feels so strongly about battery health that its 1-year warranty covers any battery at 80% capacity or more. It's not unusual to see iPhones that, after one year, still have a battery capacity of 95% or above.

Is optimized battery charging or 80% limit?

Do you need to fully charge a new iPhone?

Unlike older batteries that used nickel–cadmium, the latest lithium-ion batteries in most iPhones nowadays do not require you to fully charge your new iPhone before use. You can immediately use it, or topup the charge if you need to for the new iPhone.

At what battery percentage should I change my iPhone battery?

Batteries degrade over time with usage due to chemical aging, that's just how they work. You can expect about a 1% drop per month with average use on an iPhone. Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.

Is it good to stop charging at 80%?

Should I charge my phone to 100% the first time?

But it's also not good to run the battery to 0% even for lithium ion batteries. For first time use it is. Drain it completely, then give it a full charge, and that should be done at least twice. Not as important as the older cell batteries, but it'll prolong the life of it in the long run.

Is optimized battery charging or 80% limit?

Optimized Battery Charging: Prompts the iPhone to trickle charge up to 80% overnight and then tops up to 100% as you're about to wake up. 80% Limit: Caps the charging at 80%. Apple says the iPhone will occasionally charge to 100% in order to maintain a more accurate battery state-of-charge estimate.

Why does my iPhone only charge to 80%?

If your device stopped charging at 80 percent Your iPhone might get slightly warmer while it charges. To extend the lifespan of your battery, if the battery gets too warm, software might limit charging above 80 percent. Your iPhone will charge again when the temperature drops.

Is 80% battery life good for iPhone?

Apple considers any iPhone with a battery capacity of 80% or above to be in optimal condition. In fact, Apple feels so strongly about battery health that its 1-year warranty covers any battery at 80% capacity or more. It's not unusual to see iPhones that, after one year, still have a battery capacity of 95% or above.

Can I plug my phone in at 80%?

How long should 100 last on iPhone?

For most customers, the battery in your iPhone should last the whole day. You can charge your iPhone every night even if the battery isn't fully depleted. iPhone automatically stops charging when the battery is fully charged, so it's safe to keep your iPhone connected to a charger overnight.