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Phone battery capacity

Apple

iPhone 13

A compact mainstream iPhone battery that sits between the 13 mini and the much larger 13 Pro Max.
Direct answer

The iPhone 13 battery stores 12.41 watt-hours.

The model-specific replacement battery listing lists 3,227mAh at 3.84V. This model-specific battery value is used for every calculation below.

Rated energy
12.41Wh
Rated capacity
3,227mAh
Nominal voltage
3.84V
Power-bank calculation

How many full iPhone 13 charges?

We multiply the power bank’s rated Wh by 0.75, then divide by the phone’s 12.41Wh battery. The result is a planning estimate, not a laboratory guarantee.

5,000mAh class≈ 1.1×

18.5Wh rated → 13.9Wh planned delivery

10,000mAh class≈ 2.2×

37Wh rated → 27.8Wh planned delivery

20,000mAh class≈ 4.5×

74Wh rated → 55.5Wh planned delivery

(power-bank Wh × 0.75) ÷ 12.41Wh
Power banks for this phone

Three useful sizes for the Apple iPhone 13.

These are capacity classes, not paid rankings. The charge count uses this phone’s 12.41Wh battery and the same 75% delivered-energy allowance.

Capacity is not speed

12.41Wh tells you how much.
Charging watts tell you how fast.

Wired chargingFast-charge capable with a 20W or higher adapter

The phone, charger and cable must negotiate the same charging profile.

Wireless chargingUp to 15W with MagSafe; up to 7.5W with Qi

Alignment, heat and charger certification can reduce real wireless power.

Evidence

Two sources, two different jobs.

The manufacturer page supports the phone and charging claims. The model-specific iFixit source supplies the battery figures used here; where voltage is not printed, it is explicitly labelled as derived. Replacement parts are labelled as genuine or aftermarket according to that source.

Manufacturer specificationApple phone specifications ↗Replacement battery evidenceModel-specific energy listing via iFixit ↗Sources checked . We have not physically tested this phone.
Frequently asked

Keep energy and charging power separate.

How many Wh is the Apple iPhone 13 battery?

The model-specific replacement battery listing lists 12.41Wh, 3,227mAh and 3.84V. Watt-hours are the most useful capacity figure when comparing it with a power bank.

What is the iPhone 13 battery capacity in mAh?

The battery evidence lists 3,227mAh. Rated and typical figures describe different points, so this page labels them separately.

How many times can a 10,000mAh power bank charge the iPhone 13?

A 37Wh power bank gives about 2.2 full charges in our planning calculation. That assumes 75% of the power bank's rated energy reaches the phone battery; actual results vary.

What size power bank is useful for the iPhone 13?

A 10,000mAh-class power bank rated around 36–37Wh is a practical everyday class and gives about 2.2 full charges in this calculation. A smaller 18.5Wh pack gives only about 1.1 charge, while a 74Wh pack gives about 4.5.

Does 12.41Wh mean the iPhone 13 charges at 12.41W?

No. 12.41Wh is stored energy. Charging power is a rate measured in watts; for this model the sourced charging description is Fast-charge capable with a 20W or higher adapter.