iPhone Battery mAh List: Every Model from X to iPhone 17

Quick answer: iPhone batteries range from about 1,821 mAh (iPhone SE 2nd generation) to 5,088 mAh (iPhone 17 Pro Max). Popular models sit in the middle: iPhone 11 has 3,110 mAh, iPhone 13 has about 3,240 mAh, iPhone 14 Pro Max has 4,323 mAh, iPhone 15 Pro Max has 4,422 mAh and iPhone 16 Pro Max has 4,685 mAh.

Last updated: 26 October 2026. Compiled by the KB GSM Store team from regulatory filings, teardown data and Apple's own energy labels.

iPhone battery capacity (mAh) by model

Apple rarely prints mAh on its spec pages, so the numbers below come from regulatory filings and teardowns. They are nominal (rated) capacities of a new battery.

iPhone Air, iPhone 17 Pro and iPhone 17 Pro Max figures are for the eSIM-only versions. Versions with a physical SIM tray have smaller batteries: about 3,036 mAh (Air), 3,988 mAh (17 Pro) and 4,823 mAh (17 Pro Max).

Why different websites show slightly different mAh numbers

A few models, such as iPhone 13 mini, iPhone 13, iPhone 14 Plus and iPhone 15 Pro Max, appear with values that differ by a few mAh. This happens because capacity is quoted in different ways: rated capacity versus typical capacity, and regulatory documents versus teardown measurements. The gap is tiny (under 1%) and does not change which phone has the bigger battery.

mAh vs Wh: what actually decides battery life?

mAh measures stored charge at the cell's nominal voltage. Watt-hours (Wh) is the better unit for comparing phones because it also includes voltage: Wh = mAh × nominal voltage ÷ 1,000. Even then, a bigger number does not guarantee longer use. Chip efficiency, screen type, brightness, network signal and iOS version all matter. For example, the iPhone Air has a smaller battery than the iPhone 17, and Apple's thin design is the reason, not a weaker cell.

How to check your iPhone battery health

1. Open Settings > Battery > Battery Health & Charging.
2. Read Maximum Capacity. It is shown as a percentage, not in mAh.
3. Multiply the percentage by the original capacity in the table to estimate your current mAh. Example: an iPhone 13 Pro Max at 85% has roughly 4,352 × 0.85 ≈ 3,699 mAh.
4. On iPhone 15 and newer, the same screen also shows the cycle count.

Apps such as coconutBattery, 3uTools and iMazing can read design capacity and current capacity in mAh when the phone is connected to a computer.

Apple designs iPhone batteries to keep up to 80% of their original capacity after 500 complete charge cycles, and iPhone 15 and later models after 1,000 cycles.

When should you replace an iPhone battery?

• Maximum Capacity has dropped below 80%.
• The phone shuts down suddenly, even with charge showing.
• Battery drains very quickly or the phone gets unusually hot.
• The back or screen is lifting. This can mean a swollen battery. Stop charging and stop using the phone until it is serviced.

The price of a replacement in Pakistan depends on the model, whether the cell is original or compatible, and the shop. Before you pay, ask which cell is being fitted, what warranty comes with it and whether Battery Health will display normally afterwards.

For technicians: battery health messages after replacement

On iPhone XS and newer, iOS pairs the battery data with the phone. If a replacement battery cannot be verified, iOS can show an Important Battery Message or an unknown-part notice, and the Battery Health screen may not show a capacity percentage. A tag-on battery flex or a battery programmer is designed to read, write and correct this data so the warning pop-up is cleared.

These KB GSM Store tools match the models in the table above:

Frequently asked questions

How many mAh is the iPhone 11 battery?

The iPhone 11 has a 3,110 mAh battery. The iPhone 11 Pro has 3,046 mAh and the iPhone 11 Pro Max has 3,969 mAh.

How many mAh is the iPhone 13 battery?

The iPhone 13 battery is rated at about 3,227 to 3,240 mAh. The iPhone 13 Pro has 3,095 mAh, the iPhone 13 Pro Max has 4,352 mAh and the iPhone 13 mini has about 2,406 to 2,438 mAh.

Which iPhone has the biggest battery?

The iPhone 17 Pro Max has the largest battery of any iPhone at 5,088 mAh (eSIM-only version), and it is the first iPhone to pass 5,000 mAh.

Does a higher mAh mean longer battery life?

Not always. Battery life depends on capacity and on how efficiently the chip, display and software use that energy. Compare models by Wh and by real-world tests, not by mAh alone.

Can I see my iPhone battery mAh in Settings?

No. iOS shows Maximum Capacity as a percentage under Settings > Battery > Battery Health & Charging. Use the table above and the percentage to estimate your current mAh, or read it with a computer tool such as coconutBattery or 3uTools.

When should I replace my iPhone battery?

Replace it when Maximum Capacity falls below 80%, when the phone shuts down unexpectedly, or when you notice swelling. Swelling needs immediate service.

Why does my iPhone show an unknown part or Important Battery Message after a battery replacement?

The new battery's data does not match the phone's records, so iOS cannot verify it. A technician can fix this by transferring or correcting the battery data with a tag-on flex or a battery programmer.

Sources

• 9to5Mac: iPhone battery mAh capacity list
• Macworld: iPhone battery capacities compared
• Android Authority: iPhone 16 battery capacities (regulatory filing)
• Notebookcheck: iPhone 17 series battery capacities (Apple EU energy labels)
• TidBITS: iPhone battery-life tables