How long does it take to charge an iPhone 6s?

Whitney.Kobs wrote:

Actually that's really bad for ur batter

No, it is really GOOD for your battery and your phone to be charged overnight, every night. And also for you, because doing so means that your phone will be backed up to iCloud every night.

kalesi9 wrote:

What does that even mean? Why should you as an Apple user spend 3 hours charging your phone?

Because that's about how long it takes. However, you can charge if for less time than that if that's all you have time for. It just won't fully charge.

Edward_J_Marty wrote:

Actually, I have had better battery time to charge than your testing as Ive had my iPhone 6S from 2-100 in less than 100 mi

It's not a contest. How long a battery takes to charge (or discharge) depends on a number of factors including temperature, processor load, age of the battery and a bunch of other things that Lawrence could better explain. Comparing how fast your battery charges to how fast someone else's doesn't have a lot of meaning or utility. Comparing how fast your battery charges against how fast Apple says it's supposed to charge has some use.

Interesting commenting on an almost 2 year old post. The 6S battery capacity when new is 1715 mah. The standard USB adapter provides 1 amp (1000 ma), so if it charged at the full rate it would take 1.7 hours, or 1:42. But it doesn't charge at the full rate; it tapers off after it reaches 75%, so actual charge time using the Apple "cube" will be closer to 2:15. The 6S can benefit from higher capacity sources, up to 1500 ma. So if you use, say, an iPad USB source the full rate would be 1:10, but, with the taper, that would probably extend to 1:45.

If your phone charges faster than this that means its battery has lost some capacity. You can check that with an app such as Battery Life from the app store.

Greetings George8x,

Thank you for using Apple Support Communities. It is my understanding you want to know how long it takes to charge an iPhone. I would recommend you read this article, it should be helpful in troubleshooting your issue.

Batteries - Why Lithium-ion? - Apple

Your Apple lithium-ion battery uses fast charging to quickly reach 80% of its capacity, then switches to slower trickle charging.

Have a nice day

Sounds like it is about right for charge times. Also note there is no requirement to completly charge the battery.

George8x wrote:

I'm back again. Tried with two different iPhones and it took from 0 to 100% about 2 hours and 40 minutes to charge while powered on.

You are way, way over-thinking this. Charging time can be affected by background tasks, temperature, minor variations in manufacturing. Put your phone on the charger at night when you go to bed. It will be fully charged and ready to go in the morning.

i have checked it. yes it takes approximately 2.40 hrs to charge from 0 to 100%.

cj9111 wrote:

i have checked it. yes it takes approximately 2.40 hrs to charge from 0 to 100%.

Draining your battery to 0% is not good for it.

Does anyone know how long it takes to reach 80%?

GeorgeZeven wrote:

Does anyone know how long it takes to reach 80%?

It all depends on what the phone is doing in the background, which adapter your using, temperature, what percent you started at.

Perhaps if you explained why your asking this, someone could give you the information you really need.

It will reach 80% in under an hour, then take another 60-90 minutes to reach 100%. If you use an iPad USB adapter it will reach 80% faster, as the 6 and later can safely charge at a 1.5 amp rate. Earlier models would use no more that 1 amp regardless of the capability of the power source.

The best practice, however, is to charge the phone overnight, every night. And enable automatic backups, so you will have a daily backup in case of disaster. The charging circuit in the phone will stop all charge activity when the phone reaches 100%, so there is no danger of overcharging regardless of how long you leave it plugged in.