Can I Use the Same Car Charger for Both Laptops?

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SUMMARY

The discussion centers on the compatibility of a car charger rated at 18.5V and 4.9A with a laptop that originally uses a charger rated at 18.5V and 2.5A. It is established that as long as the voltage matches and the current rating of the new charger is equal to or greater than that of the original charger, it is safe to use. The maximum current specification indicates the charger’s capacity, not the amount it will supply, which depends on the device's requirements.

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Individuals with multiple laptops, electronics enthusiasts, and anyone looking to understand charger compatibility and safety in using alternative power sources.

iancoric
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I have two laptop computers but a car charger for only one of them. The charger says it produces 18.5V 4.9amps. Will this be OK for the other laptop - the specific charger sold by the manufacturer produces 18.5V 2.5amps. Thanks!
 
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The current specifications on devices like these are the MAXIMUM current the device is able to supply. These devices produce a specific potential (voltage) and the thing you plug into it determines how much current must be delivered.

As long as your new charger can produce as least as much current as your old charger, you should be fine.

- Warren
 
Thanks - i was hoping you'd say that!
 

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