Charger help & guides
Make sure you buy the right charger — and that it's safe. Or search your laptop model to jump straight to the exact one.
Charger guides
- USB-C or barrel? How to tell which charger your laptop needsThe single biggest cause of buying the wrong laptop charger. Here's how to tell in 5 seconds whether your HP or Dell charges over USB-C or a round barrel plug.
- Is a higher-wattage laptop charger safe to use?Yes — a higher-wattage charger with the same connector is safe. Here's why your laptop only draws the power it needs, and when wattage actually matters.
- Dell 4.5mm vs 7.4mm barrel charger — which do I need?Dell laptops use two different round barrel sizes. Get the wrong one and it won't fit (or won't be recognised). Here's how to tell 4.5mm from 7.4mm.
- HP Smart Pin charger explained (blue tip, 4.5mm)HP's blue-tipped 4.5mm 'Smart Pin' barrel charger has a centre sense pin. Here's what it is, which HP laptops use it, and why brand matters.
- Upload your charger label — we'll find the exact matchNot sure of your model? Photograph your charger's label or your laptop's power sticker and our AI reads it to find the exact compatible charger.
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