What is the Galaxy S8 battery capacity and charging speed?
Verified battery capacity, rated playback time and charging details for the Galaxy S8, each with its official source and verification date.
Short answer
The Galaxy S8 has a 3000 mAh battery.
✓2 verified fields · sources reviewed Oct 20, 2026
Battery & charging at a glance
Evidence, field by field
Every value below is drawn from the official specification source for this phone, with its verification date.
| Field | Verified value | Source |
|---|---|---|
| Capacity mah | 3000 mAh | Official sourceGalaxy S8 — Standardphonebatterycapacity notratedminimum: Standard Battery Capacity (mAh) 3000 Open source ↗Oct 20, 2026 |
| Fast charge | AFC and QC 2.0 fast charging | Official sourceGalaxy S8 — Explicitprotocols noadaptermaxW: Fast charging requires Adaptive Fast Charging (AFC) or Quick Charge 2.0-compatible charger Open source ↗Oct 20, 2026 |
What this page does not claim
Battery life depends on usage, settings and battery age. TePhone reports the official rated figure and the verified charging limit, and never fabricates a battery-capacity number.