iPhone Battery Capacity (mAh) - Every Model Compared

iPhone Battery Capacity by Model (mAh)

Every figure below is the battery's design capacity — what the cell held when the phone left the factory. Your phone's actual capacity today will be lower, and the drop is what you feel as shorter battery life.

Capacities are the published design figures for the standard (non-regional-variant) models. Some models shipped in minor regional variants with a few mAh difference; the numbers above are the widely cited reference values.

How to Check Your iPhone's Current Battery Capacity

The table shows what your battery held when new. To see what it holds now:

1. Open Settings
2. Tap Battery
3. Tap Battery Health & Charging
4. Read Maximum Capacity

That percentage is your battery's current capacity relative to when it was new. An iPhone 14 Pro Max showing 85% is holding roughly 3,675 mAh of its original 4,323 mAh — around 648 mAh less, which is most of an hour of real-world use.

To convert it yourself: design capacity × maximum capacity % = current capacity.

What mAh Actually Tells You (And What It Does Not)

mAh — milliampere-hours — measures how much charge the cell stores. More mAh means more stored energy, but it does not translate directly into screen-on time across different models.

An iPhone 15 Pro (3,274 mAh) can outlast an iPhone 12 Pro Max (3,687 mAh) despite the smaller cell, because the newer chip and display draw less power. Compare capacities within a model line to judge upgrades; compare them against your own phone's original figure to judge wear.

When Capacity Loss Becomes a Real Problem

Apple rates iPhone batteries to retain about 80% of original capacity after 500 full charge cycles. Most people reach that in 18 to 24 months of normal use.

Below 80%, two things happen. You lose obvious runtime — on an iPhone 13 Pro Max that is over 870 mAh gone. More importantly, the battery struggles to deliver peak current, so iOS may throttle performance to prevent unexpected shutdowns.

If you want the decision framework by percentage, read our guide on when to replace an iPhone battery based on battery health.

Why Batteries Age Faster in Dubai

Heat is the single biggest accelerator of lithium-ion ageing, and Dubai supplies plenty of it. A phone left on a car dashboard, used outdoors in summer, or charged inside a thick case in a hot room ages measurably faster than the same phone in a temperate climate.

In practice we see UAE iPhones reach the 80% threshold closer to 16–20 months rather than the 24 months Apple's cycle rating implies. If your capacity has dropped faster than you expected, heat is the usual reason — not a defect.