Can I use a laptop charger with higher wattage?

If your laptop charger has higher wattage than your laptop, you should be able to use it without a problem, as long as several other conditions are met. For example, the connector has to match the laptop and the amperage has to be equal to or higher than the laptop’s amperage.

Does low voltage damage laptop?

If the low voltage is outside this range, it can damage the power supply and possibly the battery or laptop. This problem can be mitigated with an Uninterruptible Power Supply, or by keeping your laptop and charger unplugged during periods of variable voltage.

Can I charge my laptop in low voltage?

It depends. Power supplies operate on different ranges. You can check on the side of your charging cable for the specifications (usually somewhere around 100-240 Volts). If the low voltage is outside this range, it can damage the power supply and possibly the battery or laptop.

Is it bad to charge a laptop with a higher voltage?

Higher voltage: It’s bad for the laptop and might kill it instantly. Sometimes even just a tiny bit of extra voltage can kill a laptop – I once destroyed an HP laptop by using a charger that was 0.5v above the rated voltage. I think the laptop was designed to take 18.5v and I gave it 19v.

How does over voltage protection work on a laptop?

We set up the over voltage protection in the circuit to provide the power. If you applied a little bit over the voltage, the laptop would work for the charge. But each components have a breakdown voltage, basically designed higher voltage 20\% to the highest voltage.

What happens if the voltage is too low on a device?

Depending on how different the supplied voltage is from what’s required, the device may simply fail, it may work “kind of”, or it may appear to work at the cost of a much shorter lifespan. If the voltage is off by enough, it can damage your device. And here’s the problem: there’s no way to say what’s enough or too much.

Why does my laptop adapter cause more current than 18V?

However, the laptop adapter’s voltage is a full volt above the specified 18 V; this will cause more current to flow into your device, since the voltage has been increased.