Can I use Different charger: Similar Voltage, lower Amps? [duplicate]

My computer uses at 19.5V 9.23A charger.

I would like to use a 19V 4.74A charger on the same laptop.

The polarities and connectors are the same.

This article is the most comprehensive explanation I've been able to find online, however it doesn't address my particular issue, where the voltage and the amperage are lower. The voltage is only slightly lower, so I'm curious as to if the Current too Low section applies to me or if because it's slightly lower does that section not apply to me and so what is the actual possible results of using the charger?

Thanks!

Solution 1:

Product: Laptop charger 19.5V 9.23A Problem: To exchange laptop charger to lower spec, 19.0V 4.74A Human Curiosity: Possible results of using the lower spec charger to laptop Laptop: N/A

Most of the technical power supply give the minimum spec to its product. It depend on you brand of laptop. Power supply usage is to charge battery and support voltage to the laptop.

Minimum spec or standard spec provide is 19.5V 9.23A, Meaning higher voltage will damage the component inside especially on IC. Lower voltage will result longer time to charge the battery and it not blow up your components. You cant on your laptop if lower voltage supplied. As long as the voltage provided can operate your laptop, then it is fine to use even though given lower voltage supply.

Your component will malfunction if given lower voltage. Lower voltage cant damage your component it just cant make your laptop to start/on. Higher voltage than specification can damage your component laptop especially capacitor and IC.

We concern about voltage only and damaging your component. Lower voltage is OK as long as laptop can operate.

I hope answered your question