Lost or broken your laptop charger? It is tempting to buy the cheapest one that fits. But a poor-quality charger can overheat, deliver unstable voltage and damage your laptop's charging circuit or battery. Here is how to choose a replacement safely.
Match these specs exactly
Look at the label on your original charger or the bottom of your laptop:
- Output voltage (V): must match, for example 19.5V or 20V.
- Wattage (W) or current (A): equal or higher is fine; lower is not.
- Connector: size, shape and centre pin must match.
- Polarity: shown as a small symbol on the label; it must match.
- USB-C: must support USB Power Delivery at the wattage your laptop needs.
Warning signs of a poor-quality charger
- Much lighter than the original.
- Spelling mistakes, blurry printing or missing safety markings on the label.
- No proper certification marks.
- Gets very hot during normal use.
- Makes buzzing or whining sounds.
- The laptop shows "unknown adapter" or charges slowly.
Need a technician? If your laptop will not turn on, will not charge or switches off without warning, a FixMyTech technician can test the charger, port, battery and power circuit and share an estimate first. Book a charging and power check online, call 085950 05049 or visit our workshop at Shop No. 71 New, Gwal Pahari, Gurugram.
Why a bad charger is risky
- Unstable output can stress the charging circuit.
- Poor insulation is a shock and fire risk.
- The laptop may refuse to charge or charge slowly.
- Repeated stress can lead to a charging port or power fault.
Buying tips
- Buy from the laptop maker or an authorised seller where possible.
- Check reviews and return policies.
- Keep the receipt.
- Avoid "universal" chargers with many interchangeable tips unless you are sure of the settings.
Is it the charger or the laptop?
If a new charger does not fix charging, the problem may be the port, battery or board. At our Gurugram workshop we test the charger and the laptop's power path before recommending any replacement, so you do not buy parts you do not need.
Frequently asked questions
Can I use a higher-wattage charger?
Yes, if the voltage and connector match. The laptop draws only the power it needs.
Can a duplicate charger damage the battery?
It can, by delivering unstable power or causing overheating.
Can you check whether my charger is genuine?
We can test its output and condition when you bring the laptop in.
Why book a FixMyTech technician?
- Charger, port, battery and power circuit tested step by step to find the real cause.
- Diagnosis first — you get the findings and an estimate, and work starts only after your approval.
- Track progress online with your reference or mobile number on the track repair page.
- Workshop in Gwal Pahari, Gurugram, convenient for customers from South Delhi, Delhi NCR and Noida who book ahead.
Ready to get it sorted? Book a charging and power check online or call 085950 05049.
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Get expert help with charging and power issues
Visit our workshop in Gwal Pahari, Gurugram — easy to reach from South Delhi and across Delhi NCR. We diagnose first and share an estimate for your approval before any work.