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Phone battery capacity

Google

Pixel 8 Pro

A large Pixel battery whose real charge count is lower than a generic 15Wh-phone estimate suggests.
Direct answer

The Pixel 8 Pro battery stores 19.25 watt-hours.

The genuine replacement battery lists 4,950mAh at 3.89V. Google separately lists 5,050mAh as the typical capacity; rated and typical capacity should not be silently mixed.

Rated energy
19.25Wh
Rated capacity
4,950mAh
Typical capacity
5,050mAh
Nominal voltage
3.89V
Power-bank calculation

How many full Pixel 8 Pro charges?

We multiply the power bank’s rated Wh by 0.75, then divide by the phone’s 19.25Wh battery. The result is a planning estimate, not a laboratory guarantee.

5,000mAh class≈ 0.7×

18.5Wh rated → 13.9Wh planned delivery

10,000mAh class≈ 1.4×

37Wh rated → 27.8Wh planned delivery

20,000mAh class≈ 2.9×

74Wh rated → 55.5Wh planned delivery

(power-bank Wh × 0.75) ÷ 19.25Wh
Power banks for this phone

Three useful sizes for the Google Pixel 8 Pro.

These are capacity classes, not paid rankings. The charge count uses this phone’s 19.25Wh battery and the same 75% delivered-energy allowance.

Capacity is not speed

19.25Wh tells you how much.
Charging watts tell you how fast.

Wired chargingFast USB-C charging with a compatible PPS charger

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

Wireless chargingQi-certified wireless charging

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 specificationGoogle phone specifications ↗Genuine battery partGoogle-part energy label via iFixit ↗Sources checked . We have not physically tested this phone.
Frequently asked

Keep energy and charging power separate.

How many Wh is the Google Pixel 8 Pro battery?

The genuine replacement battery lists 19.25Wh, 4,950mAh and 3.89V. Watt-hours are the most useful capacity figure when comparing it with a power bank.

What is the Pixel 8 Pro battery capacity in mAh?

The battery evidence lists 4,950mAh. Google separately lists 5,050mAh as typical capacity. Rated and typical figures describe different points, so this page labels them separately.

How many times can a 10,000mAh power bank charge the Pixel 8 Pro?

A 37Wh power bank gives about 1.4 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 Pixel 8 Pro?

A 10,000mAh-class power bank rated around 36–37Wh is a practical everyday class and gives about 1.4 full charges in this calculation. A smaller 18.5Wh pack gives only about 0.7 charge, while a 74Wh pack gives about 2.9.

Does 19.25Wh mean the Pixel 8 Pro charges at 19.25W?

No. 19.25Wh is stored energy. Charging power is a rate measured in watts; for this model the sourced charging description is Fast USB-C charging with a compatible PPS charger.