One of the most common frustrations when replacing a laptop charger is this: you're not quite sure what model you have, and without that information, finding the right replacement feels like guesswork.
The good news? Identifying your laptop model is easier than most people think — and once you have it, finding the exact compatible charger or battery takes less than a minute.
Here's everything you need to know.
Why Your Laptop Model Number Matters
Not all laptop chargers are created equal. Different models require different voltage, wattage and connector types. Using the wrong charger can result in slow charging, battery drain while plugged in, or in some cases damage to your device.
Every laptop has three key identifiers:
💻 Brand — e.g. Dell, HP, Lenovo 📋 Series — e.g. XPS, Pavilion, ThinkPad 🔢 Model Number — the most important detail for finding compatible accessories
For example, a Dell XPS 13-4040 breaks down as:
- Brand: Dell
- Series: XPS
- Model: 13-4040
👉 For most searches, the first part of the model number is all you need. If your model looks longer — like Dell XPS X15L-3357SLV — you only need X15L-3357. The extra letters and numbers after that aren't required when finding compatible batteries or chargers.
3 Easy Ways to Find Your Laptop Model
Method 1 — Check System Information (Fastest & Most Accurate)
This works for Windows laptops and takes less than 30 seconds:
- Click the Windows Start button
- Type "System Information"
- Open the app
- Look for System Manufacturer and System Model
Your exact laptop model will appear instantly — no label hunting required.
⚠️ Please note: If your operating system is not the original manufacturer installation, this information may not be accurate. In that case we recommend using Method 2 or Method 3 to confirm your laptop model.
Method 2 — Check the Sticker on the Bottom of Your Laptop
Most laptops have a label on the base with the brand, series and model number printed clearly. Simply:
- Turn your laptop upside down
- Look for a sticker or printed label
- Note the model number — and remember, ignore anything after hyphens or extra suffixes
Method 3 — Use Your Manufacturer's Website
If the label has worn off or you can't find the model manually, your laptop's serial number or service tag can help. Most major brands have free online lookup tools:
🖥️ Dell use the Service Tag at dell.com/support
🍎 Apple use the Serial Number at checkcoverage.apple.com
💻 HP enter the Serial Number at support.hp.com
🧠 Lenovo use the Serial Number at pcsupport.lenovo.com
🔧 Toshiba/Dynabook enter the Serial Number at snlookup.com/Toshiba/Dynabook
🪟 Microsoft Surface locate the Serial Number under the back flap at mybusinessservice.surface.com
Each of these tools will display your exact laptop model in seconds.
Found Your Model? Here's What to Do Next
Once you have your laptop model, finding the right charger or battery is straightforward.
At Laptop Plus, our compatibility database covers over 40,000 laptop models across every major brand. Simply enter your model number and you'll see the exact compatible charger or battery for your device — no guesswork, no returns.
✅ 100% compatible products — guaranteed
✅ Australian certified — safe, tested and compliant
✅ Order before 2:30pm weekdays — dispatched same day
✅ Overnight delivery to Sydney, Melbourne, Brisbane, Adelaide, Perth and Canberra
✅ Australian stock, Australian support
Whether your charger has just died or you're planning ahead, getting the right replacement has never been easier.
👉 Enter your laptop model now at laptopplus.com.au/identify-your-laptop — and have the right charger or battery delivered tomorrow morning.