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Phone battery capacity

Samsung

Galaxy S24+

The larger S24+ stores substantially more energy than the standard S24 and therefore gets fewer complete charges from the same pack.
Direct answer

The Galaxy S24+ battery stores 18.45 watt-hours.

The model-specific replacement battery listing lists 4,755mAh at 3.88V. Samsung separately lists 4,900mAh as the typical capacity; rated and typical capacity should not be silently mixed.

Rated energy
18.45Wh
Rated capacity
4,755mAh
Typical capacity
4,900mAh
Nominal voltage
3.88V
Power-bank calculation

How many full Galaxy S24+ charges?

We multiply the power bank’s rated Wh by 0.75, then divide by the phone’s 18.45Wh battery. The result is a planning estimate, not a laboratory guarantee.

5,000mAh class≈ 0.8×

18.5Wh rated → 13.9Wh planned delivery

10,000mAh class≈ 1.5×

37Wh rated → 27.8Wh planned delivery

20,000mAh class≈ 3×

74Wh rated → 55.5Wh planned delivery

(power-bank Wh × 0.75) ÷ 18.45Wh
Power banks for this phone

Three useful sizes for the Samsung Galaxy S24+.

These are capacity classes, not paid rankings. The charge count uses this phone’s 18.45Wh battery and the same 75% delivered-energy allowance.

Capacity is not speed

18.45Wh tells you how much.
Charging watts tell you how fast.

Wired chargingUp to 45W wired charging with a compatible 5A USB-C cable and adapter

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

Wireless chargingFast Wireless Charging 2.0 and Wireless PowerShare

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 specificationSamsung 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 Samsung Galaxy S24+ battery?

The model-specific replacement battery listing lists 18.45Wh, 4,755mAh and 3.88V. Watt-hours are the most useful capacity figure when comparing it with a power bank.

What is the Galaxy S24+ battery capacity in mAh?

The battery evidence lists 4,755mAh. Samsung separately lists 4,900mAh 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 Galaxy S24+?

A 37Wh power bank gives about 1.5 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 Galaxy S24+?

A 10,000mAh-class power bank rated around 36–37Wh is a practical everyday class and gives about 1.5 full charges in this calculation. A smaller 18.5Wh pack gives only about 0.8 charge, while a 74Wh pack gives about 3.

Does 18.45Wh mean the Galaxy S24+ charges at 18.45W?

No. 18.45Wh is stored energy. Charging power is a rate measured in watts; for this model the sourced charging description is Up to 45W wired charging with a compatible 5A USB-C cable and adapter.

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