Does Dell XPS 15 work with 65W USB-C Charger?

What works & limitations

• Charges the XPS 15 at full speed from powered-off or sleep state — the 86Wh battery fills in approximately 2.5 hours when off
• Maintains charge during light tasks: web browsing, documents, video streaming at 30–40% display brightness
• Safe to use — USB-PD negotiation at 20V × 3.25A prevents overloading the 65W charger regardless of laptop demand
• Functional for travel when weight matters more than charging speed — the Anker 65W Nano II (A2663) weighs 86g versus Dell's 130W brick at 350g
• Compatible with both USB-C Thunderbolt 4 ports on XPS 15 9520 and 9530 — no adapter needed
• Will keep the battery from reaching 0% during moderate workloads if starting from a full charge — useful for half-day light use without the 130W adapter
• Cannot sustain charge during heavy workloads — CPU-intensive tasks like video export, 3D rendering, or gaming drain the battery even while plugged in; expect a net loss of roughly 5–8% per hour under full CPU+GPU load
• Charging speed when the laptop is on and under heavy load is effectively zero or negative — the 65W input is fully consumed by active draw
• Will not charge quickly after a heavy session — a depleted 86Wh battery takes 4–6 hours versus 1.5 hours with a 130W charger
• The Dell XPS 15 9530 and 9520 both have a rated input of 130W via USB-C PD (20V × 6.5A); the included Dell charger DA130PM170 is 130W — 65W is exactly half the required power budget, meaning peak draw of ~110W under full CPU+GPU leaves a ~45W deficit that the battery bridges
• Dell's USB-C PD implementation draws up to 65W from the port even when the laptop also uses its barrel connector simultaneously; with only USB-C at 65W, the system draws the full 65W from the charger constantly during any real workload
• Windows 11 Battery Settings: under Settings > System > Power, enabling "Power mode: Best power efficiency" reduces sustained CPU TDP from ~45W to ~28W — at that setting, a 65W charger can maintain charge during office tasks even under moderate load
• The XPS 15 USB-C Thunderbolt 4 port supports data transfer at up to 40Gbps simultaneously with charging — confirm any 65W cable is rated Thunderbolt 4 or USB 3.2 Gen 2×2 (40Gbps) if also used for an external display or dock; a 65W-only charging cable will cap data at USB 2.0 speeds