Can You Use A 19v Adapter On A 20v Device?

Can I plug 9v into 5v?


It might work for few minutes, but eventually the voltage drop on the internal regulator will cause the circuit to overheat and burn.

It could be however, that your adapter has an internal resistance causing the voltage to drop to ~5V, so it could work in this case, if the adapter can supply the needed current….

Can you use a 12v 2a charger on a 12v 1.5 a device?

Yes, you can use a 12V 3A power adapter on 12V 1.5A device. You can also use a 12V 0.5A power adapter but the charging time will be three times longer.

Is it okay to use a different charger for your laptop?

The short answer is; No. You should never intentionally use another laptop’s charger on your laptop. It doesn’t matter if you’re in a pinch or if your battery is about to die. Plugging a different charger that isn’t meant for your specific model will not lead to anything good.

Can a 15v adapter 12v device?

Not very familiar with electronics. the 15v (i guess its dc) will power a 12v ozone device. I read that things need to have the same polarity, same v, but varies MA is fine. The voltage should match and as long as the power supply has at least the amperage required by the device you should be fine.

Can the wrong charger ruin your laptop?

Using a charger with the wrong voltage rating can potentially damage your laptop. This is typically caused by too high voltage. But using a charger with too high current won’t damage your laptop. Using a charger with too low current rating might fry the power supply, but not the laptop.

Can I use a 65w charger instead of 45w HP?

As long as it is the same voltage and connector type you can use a higher watt adapter. It will charge the battery a bit faster but other than and the size of the brick you will see no difference. The laptop will only draw the current it needs while running.

Will too much amperage hurt a device?

A higher voltage than a device is designed for will most likely blow up some components, but amperage is derived from how much current is actually drawn, based on the device’s resistance, so having “too much” is not a problem and will do no harm.

What happens if I use a 12v adapter on a 9v device?

In most cases, you cannot use a 12V adapter to power a 9V guitar pedal. Using a 12V adapter on a pedal designed to only handle 9V can completely destroy it. … Voltage is only one part of the picture and even if you get the voltage right, it’s possible for a power supply to ruin your pedal.

Can I use a 19v charger on a 15v laptop?

Laptops tend to be in the 14.8V-19.5V range. It’s always safer to charge your battery or power pack at the recommended input voltage. … If you have a 15V LCO (LiCoO2) battery, then its voltage upper limit is 17V. So, 19V would be too high to charge this 15V pack.

Can I use a 5v 2a charger with a 5v 1a device?

So if you plug a 1A device into a 2A charger, it will still only draw 1A. The rest of the current capacity will be unused. The opposite is also true. If you plug a 2A device into a 1A charger, you will only get 1A.

Can I use a 19v adapter for 12v?

19V is generally going to fry any device that was designed to run at 12V (especially consumer products). And while it’s not very likely it might also catch fire. For a AC adapter to work you will need one with the exact voltage (12V) and an equal or higher current rating (1.5A or more).

Can I use adapter with higher voltage?

Voltage too high – If the adapter has a higher voltage, but the current is the same, then the device will likely shut itself off when it detects an overvoltage. If it doesn’t, then it may run hotter than normal, which can shorten the life of the device or cause immediate damage.

Can you use a 14v adapter for a 12v device?

In simple terms, using a 14V adapter will result in higher current through the components, which will shorten their life span or fry them. Most ’12v’ supplies really measure in around 13.6 or so. I think you are fine.

Can I use a 12v adapter for 10v?

No it’s not safe for the most of cases. There are two reasons. Since newer adapter has more terminal voltage therefore device is liable to draw more current and bad thing is that newer adapter is ready to provide more current. That’s why things will get worse.

Can I use an adapter with lower voltage?

Current too Low – If the adapter has the correct voltage, but the adapter’s rated current is lower than what the device input, then a few things might happen. … Bottom-line: it’s a bad idea to use a lower current rating adapter since it could cause excess heat.

Can I use a 19v charger on a 19.5 V laptop?

Voltage: 19.5V and 19V is a relatively small voltage difference. It is most probably safe to use as long as: The current of the charger is the same or higher than that of the laptop. … The output power (Amps * Volts) of the original and the new charger differs in 0.6 Watts, the 19.5V charger having more output power.

Can I use a laptop charger with higher voltage?

The short answer is yes you can use a laptop charger with a higher wattage, however, there are some caveats. The wattage rating of a laptop charger is a maximum rating which means that the charger is capable of providing power up to the output wattage rating and or course anything in between.

What happens if I use the wrong voltage adapter?

Voltage too high – If the adapter has a higher voltage, but the current is the same, then the device will likely shut itself off when it detects an overvoltage. If it doesn’t, then it may run hotter than normal, which can shorten the life of the device or cause immediate damage.

Can I charge a 19v laptop with a 12v charger?

NO you cannot charge your 12V AGM battery directly with a 19V Laptop power supply. You need a battery charger. … So your fully charged state is about 13.8 – 14.5V. Putting two batteries in parallel does not change the voltage required to charge them it simply increases the current capability (increased Ah rating).

Can I charge my laptop with another charger?

It is not recommended to swap chargers for different laptops, even if it’s the same brand. This is only 100% safe if it is the same brand and exactly the same laptop model. If you check your laptop manual, there should be at least one paragraph dedicated to explaining the risks of using a different charger.

Is an AC adapter the same thing as a Charger?

Adapters for battery-powered equipment may be described as chargers or rechargers (see also battery charger). AC adapters are used with electrical devices that require power but do not contain internal components to derive the required voltage and power from mains power.