iPhone 14 Pro Max Battery capacity and manufacturer

[reinem85]

Desay: manufacture date: 2023-06-05
Cycle count: 310
Design capacity: 4323
Full charge capacity: 3930 (90,9%)

18 months of use (was purchased in September 2023)

Does anyone here have a battery manufactured in mid 2023? Is it Desay or Sunwoda?

 

[Shamalow]

Hi

Battery replaced by Apple in May on a 13 mini.

I don't understand why my nominal charge capacity increases by 1 or 2 mAh after charging.😳
Can someone explain, please?

Sunwoda battery, December 2024.
- Design Capacity: 2406
- last_value_MaximumFCC: 2493
- last_value_AppleRawMaxCapacity: 2485
- last_value_NominalChargeCapacity: 2445
- last_value_NCCMax: 2465
- last_value_NCCMin: 2431

 

[Mlrollin91]

Hi

Battery replaced by Apple in May on a 13 mini.

I don't understand why my nominal charge capacity increases by 1 or 2 mAh after charging.😳
Can someone explain, please?

View attachment 2516054

Sunwoda battery, December 2024.
- Design Capacity: 2406
- last_value_MaximumFCC: 2493
- last_value_AppleRawMaxCapacity: 2485
- last_value_NominalChargeCapacity: 2445
- last_value_NCCMax: 2465
- last_value_NCCMin: 2431

Nothing really to explain. Batteries are not static. They move up and down. But overtime, they will always move down. Temperature, charging speed, usage, etc., all play a factor in what the mAh rating is.

 

[Shamalow]

Nothing really to explain. Batteries are not static. They move up and down. But overtime, they will always move down. Temperature, charging speed, usage, etc., all play a factor in what the mAh rating is.

Thank you for your reply. 👍

I understand that there may be a fluctuation, up or down.

I have three iPhones, and this is the only one whose nominal capacity keeps increasing. I find this odd.

Today's new value is 2448 mAh (+3 mAh). 🙂