How fast does each charger charge Galaxy Watch9?
Samsung’s EP-OL300 page claims up to 45% in 30 minutes (with a ≥ 5V/2A adapter; speeds vary). Press tests of the included puck land around 90–108 minutes for 0→100%. Sundryard original timed runs: 0 published so far — protocol below is ready when hardware tests land.
Claims checked 2026-09-15. Original rows stay empty until real runs.
EP-OL300 (Galaxy Smartwatch Wireless Charger)
Manufacturer claim
? → 45% in 30 min
Samsung: up to 45% in 30 minutes with this fast charger. Caveats on product page: requires ≥ 5V/2A adapter; fast charging on Watch5 and later; actual speed varies.
- Power adapter
- Separate PD adapter ≥ 5V/2A (Samsung note)
- Watch
- Compatible Galaxy Watch series (marketing; Watch7 shown)
- Temperature / conditions
- Not stated — marketing claim; speeds vary by device
- Repeats in source
- Not stated / marketing
Source: Samsung UK — EP-OL300
Claims table
| Origin | Charger | Interval | Adapter |
|---|---|---|---|
| Manufacturer claim | EP-OL300 (Galaxy Smartwatch Wireless Charger) | ? → 45% in 30 min | Separate PD adapter ≥ 5V/2A (Samsung note) |
| Press / review | Included charging stand (Watch9 box) | 0% → 100% in 108 min | Reviewer’s 18W brick (not included) |
| Press / review | Included magnetic charging puck | 0% → 100% in 100 min | Not specified |
| Press / review | Included puck (wireless up to 10 W claimed in review) | 0% → 100% in 90 min | Not specified |
Sundryard original test protocol (when runs exist)
- Disable AOD and pause workouts; note watch model (40 or 44 mm) and One UI Watch build.
- Record starting battery % after 5 minutes of idle on the charger dock (thermal settle).
- Note charger SKU (e.g. EP-OL300), wall adapter (brand, rated W / PD profile), cable, and room temperature °C.
- Start a timer when charging icon appears; sample % at fixed intervals (every 10 minutes) until target end % or 100%.
- Repeat the same interval at least twice on different days; publish each run row, not averages alone.
- Do not invent watts — only % and wall-clock minutes.
Recorded fields: start_pct, end_pct, minutes, charger_model, power_adapter, watch_size, temperature_note, run_id, date
