What is the Galaxy S9 battery capacity and charging speed?
Verified battery capacity, rated playback time and charging details for the Galaxy S9, each with its official source and verification date.
Short answer
The Galaxy S9 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 S9 — Launchcapacity notclaimedratedminimum: Battery | 3,000mAh | 3,500mAh Open source ↗Oct 20, 2026 |
| Fast charge | QC 2.0 wired fast charging | Official sourceGalaxy S9 — ActualQC2wiredprotocol notW: Fast Wired Charging compatible with QC 2.0 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.