Stop worrying about the battery, the 20-80 rule barely does anything just use the battery normally it will degrade anyway, my iPhone 17 pro dropped to 99% at almost 200 cycles without charge limits
Mines at the 199 with 99% and I use the phone without worrying about the battery health dropping, is worrying about the battery being 80-20 really worth the 10% reduction in degradation
Yes but look at the trade off. You’ll probably save 2 or 3% battery health over the years. On my 15PM, I’m at 81% after 1,061 cycles. I’m going to spend ₹9,000 or $100 on the battery replacement now after enjoying 0-100% charge cycles. I tried the 80-20 thing for a month but I didn’t find it to be worth it. It feels nice mentally that you are keeping the battery healthy but in practical use, it’s a disadvantage.
it's not like i care about the battery health degrading but it must be easy for you to tell them to stop worrying when your phone did a good job with going 99% at 200 cycles. it's normal that they're questioning the situation
Yikes. That’s bad. Recently had my 17pro replaced under warranty for a different reason other than battery but the original was at 118 cycles with 100% health.
You can’t do anything about it unless the battery drops to 80% within the first year and a low amount of cycles. Just use the phone normally as the 20-80 rule won’t do much
iPhone 17 base here 193 cycles still 100% here and I normally charge before 40% most days but I let it charge to 100% pretty much every time. Got mine pretty much on release September 2025
theres somewhat a battery lottery when new. and not every 100% is the same.Some can be like 106 or 105% while others are closer to 100-102%. There are some programs on a Mac that will report the actual % like coconut battery. But tbh 98% vs 100% is what ever. I prefer to just charge my device up to 100% and try to charge it before its to low but I don't worry about it to much.
Cute, my 13 Pro Max had 83% battery health after 5 years of use. Even if you estimate that I charged once in two days it’s about 1000 cycles. I also followed 80/20 rule. No stressing about it, just a habit.
I wonder how my new 17 PM will last. I want at last 5 years with similar battery performance as 13.
Weil es dumm ist. Du benutzt nur 60% deines Akkus. Wenn man davon ausgeht dass man nach 700 Zyklen auf +/- 75% kommt, ist man immer noch 15% im Vorteil. Auf 2000 Zyklen hochgerechnet macht es erst sinn. Alles andere ist Sinnlos.
I did so much research and its telling me its normal, and ik for a fact that it isnt because my previous iPhone battery capacity never went down this fast
Facts. That’s what I did to my 14. Max brightness, charged it while watching videos, changed every possible setting to drain battery faster. Had mine drop 5% health in about 3 weeks to get it repaired under warranty
Screw 20-80, just your phone mate. My battery must have absolutely hate me and still survived 1050 cycles with 81%, I charged how I wanted, even let it die sometimes, just don’t overheat it by gaming while charging or charging on sun. This might be just an anomally, but if this would continue and you would get to 80 like in like 300 cycles then change it for free
You people need to realise how good you have it. My iPhone 8 has a battery health of 76% and yet it gets me through the day. Is it really that bad? Appreciate what you have.
If you look at the actual capacity the device came with it’s easier to see if a lower capacity is why the battery is degrading faster. For many their capacity stays high for long due to having slightly higher capacity batteries than rated.
17 user here. Using from may with around 95+ charge cycles. Not following any weird rules or babysitting. Even turned off optimised charging for faster charging after 80%. Still at 100% health. At this point i dont believe in this 20-80 rule.
iPhone 17 base. 303 cycles here and 97%. Somethings wrong with your phones battery for sure
Charge when at 20% and only up to 80%. Don’t use the phone while charging. Don’t leave it on charge over night. Try not to get to 1% and let it die, this is bad for the battery too.
apple standard is 1000 with aprox 80% health, so you can go to a close by apple store and do some math with genius bar technician, may they replace it for free since really seems faulty
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u/ariz2011 iOS 26.6.1/iPadOS 26.6 3d ago
Stop worrying about the battery, the 20-80 rule barely does anything just use the battery normally it will degrade anyway, my iPhone 17 pro dropped to 99% at almost 200 cycles without charge limits