I purchase new iPhone January 2-3 month working fine battery health is 100% then down 1 per then i watch regularly battery health ever 3 day my battery down by 1 percentage i don't user another charging only apple charging now my battery health 90% is this joke apple this your most expensive phone not 1 year use this west of money i don’t recommend any one to purchase iphone
Your phone is 9 months old and it has decreased in capacity by 10%. That's approx. 1% a month, not every 3 days.
This is right on track, batteries degrade over time with usage due to chemical aging.
You can expect about a 1% drop per month with average use on an iPhone. This is an approximation, that is why it may be plus or minus a few percent on a month to month basis.
Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.
iPhone Battery Replacement.
iPhone Battery Replacement - Apple Support
About Lithium Ion Batteries
iPhone battery and performance - Apple Support (IN)
Here are some tips on maximizing battery life.
Batteries - Maximizing Performance - Apple
Your phone is 9 months old and it has decreased in capacity by 10%. That's approx. 1% a month, not every 3 days.
This is right on track, batteries degrade over time with usage due to chemical aging.
You can expect about a 1% drop per month with average use on an iPhone. This is an approximation, that is why it may be plus or minus a few percent on a month to month basis.
Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.
iPhone Battery Replacement.
iPhone Battery Replacement - Apple Support
About Lithium Ion Batteries
iPhone battery and performance - Apple Support (IN)
Here are some tips on maximizing battery life.
Batteries - Maximizing Performance - Apple
At 325+ cycles, your battery should be at 87% or less It is at 90%.
You should be happy. Your battery is doing better than average.
Your battery is doing better than you think it is. For every 25 cycles, it would be normal to lose 1% in battery health. You've already been through 329 full cycle charges, which means you've used the battery a LOT in the amount of time you're owned your iPhone. 329/25 = 13.16. Since your battery health is at 90%, when it would not be uncommon for it to be at 87%, your doing better than expected.
To NOT recommend anyone purchase an iPhone because battery health decreases is foolish. Batteries lose a little of their health with EVERY full cycle charge. You cannot stop battery health decline.
But if you think owning another manufacturers phone is a better option, knock yourself out. Samsung doesn't even let you know what the health of the battery is on their phones. Their health declines like EVERY battery does. But for you, perhaps NOT knowing by how much the battery has declined would be better.
Battery heath issue
