Pixel 9
The standard Pixel 9 shares its battery size with the smaller Pixel 9 Pro, despite the different model name.The Pixel 9 battery stores 17.77 watt-hours.
Every calculation below uses the model-specific 4,558mAh figure. The separate typical value of 4,700mAh is labelled and not silently mixed with rated capacity.
- Rated energy
- 17.77Wh
- Rated capacity
- 4,558mAh
- Typical capacity
- 4,700mAh
- Nominal voltage
- 3.9V
How many full charges?
We take 75% of the power bank’s rated Wh and divide it by this phone’s 17.77Wh. This is a planning estimate, not a charging guarantee.
18.5Wh rated → 13.9Wh planned delivery
37Wh rated → 27.8Wh planned delivery
74Wh rated → 55.5Wh planned delivery
(power-bank Wh × 0.75) ÷ 17.77Wh17.77Wh tells you how much.
Charging power tells you how fast.
The phone, USB power adapter and cable must negotiate a compatible charging profile. Use certified equipment suitable for Australia.
Alignment, heat and charger certification affect real charging power.
Two sources with different jobs.
The manufacturer supports the phone and charging claims. The model-specific battery source supplies the figures used in the calculation. These technical figures do not prove Australian retail availability or an included charger.
Keep energy and charging power separate.
How many Wh is the Pixel 9 battery?
The model-specific source lists 17.77Wh and 4,558mAh. Watt-hours are the useful figure when comparing it with a power bank.
How many times can a 10,000mAh power bank charge the Pixel 9?
A power bank rated around 37Wh provides about 1.6 full charges in this planning calculation. We assume 75% of rated energy reaches the phone battery.
Does 17.77Wh mean the phone charges at 17.77W?
No. Wh is stored energy; W is charging power at a point in time.