Can a laptop charger power a car amp?

If the laptop charger can deliver several amps, you risk blowing/burning the car amplifier, especially if it has no fuse. A2A Quite probably – it might burn out immediately due to over voltage, or run hot. Not a good idea.

Is it safe to charge car battery with laptop charger?

Originally Answered: Can I use my 19.5V laptop charger to charge 12V dead car battery? Yeah, should work. Most laptop chargers are around 3 amps. Heat shouldn’t be a problem if you open the venting caps on the battery but it might explode acid in your face with the extra voltage so take appropriate safety precautions.

Can I use laptop charger with lower amperage?

The amperage rating of a charger or power supply is the maximum it can supply. A device being charged will only take as much amperage as it requires. If your device needs 0.5 amps to charge, and your charger is rated at 1.0 amps, only 0.5 amps will be used.

How do you reduce voltage from 19v to 12V?

The simplest way is a 12 v battery and a resistor from its positive terminal to the 19 v positive supply. Connect the load accross the battery. And the other terminal of the 19 v to the other terminal of the battery… .

Can a 12V power supply be used in a 19V car?

There are examples for different outcomes. If that “12V” device was designed to be used in cars/boats, from the nominally 12V supply that’s around 14V when the engine is running, and might carry transients up to 200V, then it must be able to tolerate 19V. At least for a short time.

Can You charge a laptop with an inverter?

A pure sine wave inverter works just fine with laptops, but even so, inverters aren’t very efficient for charging laptops. An inverter steps up your 12V to 220V (or 110V), and then the laptop charger will step the power back down to 18.5V, 19V, 20V etc. depending on your laptop.

Is 1919v too high for a 12V power supply?

19V in general is too high for a 12V device. I wouldn’t recommend going any higher than 14–15V. Even if your device works for some time, it will likely get damaged after some time (it could be seconds, minutes, hours, days…). Probably but maybe not . Your question is so vague it would be impossible to answer with accuracy .

What type of Charger do you use to charge your laptop?

12V to 19V laptop charger (for my Acer Aspire laptop) Plugs directly into a cigarette lighter socket (I have multiple in my van) But still powerful enough to charge my laptop quickly