Before shopping, look at the or the sticker on your original power brick to find these critical numbers:
Replacing a laptop power supply doesn't have to be a tech-support nightmare. Whether you are replacing a frayed cord or upgrading for travel, here is how to navigate the process effectively. 1. Identify Your Requirements
This must be an exact match (e.g., 19.5V). Using the wrong voltage can permanently damage your motherboard.
Check the size and shape of the plug (pin diameter). Some brands use proprietary pins with a "sense pin" in the center that identifies the charger to the laptop. 2. Choose Your Replacement Type Depending on your needs, you have three main options:
This can be equal to or higher than your original, but never lower. A higher-wattage charger (like 90W for a 65W laptop) is safe because the laptop only "pulls" the power it needs.