Quick answer: Most Samsung Chromebooks (Galaxy Chromebook 2, Chromebook 4, Chromebook Plus V2) charge over USB-C at 45W or 65W depending on model. Any certified USB-C PD charger at or above your model’s rated wattage will work, even if it’s not Samsung-branded.
What Wattage Does Your Samsung Chromebook Need?
- Samsung Chromebook 4 / 4+: 45W USB-C charger.
- Samsung Galaxy Chromebook 2: 45W USB-C charger, sometimes bundled at 65W for faster charging.
- Samsung Chromebook Plus V2: 45W USB-C charger.
You can check your exact model’s original wattage printed on the barrel of your existing charger (if you still have it) or in Settings > About ChromeOS > model details.
What to Look for in a Replacement Charger
- USB-C with USB Power Delivery (PD). Avoid cheap USB-C cables that only support data, not power delivery — they’ll either not charge at all or charge extremely slowly.
- Equal or higher wattage than your original. A 65W charger works fine on a device rated for 45W; the Chromebook only draws what it needs. Going lower than rated wattage means slower charging, especially under load.
- A reputable brand (Anker, Samsung, Google-certified, or similar) — uncertified budget chargers are a common cause of inconsistent charging or triggering “not charging” warnings.
Signs You Have the Wrong Charger
- A notification saying your charger isn’t fast enough, or charging happening only while the Chromebook is off.
- Extremely slow charging (adding less than 10% per hour while in use).
- The device charging fine when off but draining while awake and plugged in.
Still Not Charging Properly?
If you’ve confirmed you have the right wattage and it’s still not charging, see our Samsung Chromebook plugged in but not charging guide for port and cable troubleshooting, or our Samsung battery health check guide if you suspect the battery itself has degraded.
FAQ
Can I use my phone’s USB-C charger on my Samsung Chromebook?
Only if it supports USB PD at sufficient wattage. Many phone chargers are 15-25W, which will charge a Chromebook, but very slowly, especially while it’s in active use.
Does a higher-wattage charger charge faster or risk damage?
It charges at whatever rate the Chromebook’s own charging circuit requests, which is capped safely — a higher-wattage charger won’t damage the device or overcharge the battery.
