The connector can vary for different laptops, like rounded small pin, rounded big pin, etc. The cylindrical connector tips are the most commonly

Selecting the correct replacement charger is crucial, as using a charger from another laptop can potentially cause irreversible damage to your device, particularly if there is a discrepancy in voltage. To identify the suitable charger for your laptop, adhere to the following three straightforward steps: Navigate to the section of interest: FAQ Step 1 Locating Your Laptop’s Model or Charger’s Model Number Normally you can find these parameters on a label at the bottom of the notebook. For example, the tag shows “Latitude E5270”, then the corresponding parameters of the Dell laptop power adapter is “Output: 19.5V 3.34A”. Sometimes there is not a tag at the bottom of your Dell laptop, then you can check the tag of your original Dell laptop charger. Then find your laptop model at following navigation: Among the information provided, the following two details are essential to verify: 1. Pin Type & Diameter (For this example, it is 7.4×5.0mm) 2. Output (In this case, it is 19.5V, 3.34A, 65W) Step 2 How to tell the tip size of my laptop charger Relying solely on the charger model to find a replacement can be hazardous.  This is due to the possibility that the same model may come with various pin diameters or output specifications.  If the pin type or size is incorrect, it will not fit into your laptop’s charging port.  Moreover, an incorrect output voltage could lead to permanent damage to your laptop’s internal components.  To ensure that the replacement charger you are acquiring is indeed the correct one, it is imperative that both the pin type, diameter, and output specifications align with those of your original charger.  It is necessary to measure both the outer and inner diameters of the original charger.  Most listings for laptop chargers will provide the connector sizes in the product description or specification table, formatted as outer diameter x inner diameter. For instance: 7.4×5.0mm.  You will need to measure the outer and inner diameters of your original laptop pin and compare them with those of the replacement charger. Both measurements must match precisely; otherwise, the charger will not fit. Step 3 Output voltages and amps on laptop charger To determine the output, simply examine your AC adapter for the “Output” label. For example, the output for the aforementioned laptop charger is 19.5V x 2.31A. The formula for calculating wattage is Wattage = Voltage x Ampere, which indicates that the charger’s output is: Voltage: 19.5V Ampere: 2.31A Wattage: 45W For the purpose of obtaining a replacement, it is essential that the output specifications of both the original and replacement chargers are identical.