What happens if I use a charger with higher voltage
An AC adapter supplying electricity at a higher voltage than required will cause the connected device to run hotter. Sending power at a higher voltage will also shorten the lifespan of the device and may fry its internal circuits. Using an AC adapter with a different current rating can be an issue.
Can I use 19v charger for 12v
19v chargers in general are considered too high for a 12v device. In most cases venturing beyond 14-15v is highly discouraged. Although the appliances work for a while, they will very likely be damaged after that period has passed. It could be seconds, minutes, hours, days, or even months in some cases.
Can I use 19v charger for 14v device
It's not advisable to supply a higher voltage where a smaller one is expected. The result can be voltage or overcurrent damage to the device. While it may “work”, you may not see the damage occurring until it is too late.
Is it OK to use higher amp adapter
The amperage rating on your power supply simply means that the supply can put out up to 2 amps, so as long as the voltage matches (12 volts) you could safely use a higher amp power supply for your device.
Can I use a 6V adapter for 5V
No. To regulate 6V down to 5V you need a switching regulator or Buck converter as it is known. You do not have enough excess voltage for a linear regulator unless you use a low dropout type.
Can I use a 5V adapter to power a 3V device
It could result in immediate failure that could result in smoke or even fire. Other times, it results in a shortened life of the appliance. Very rarely you will find that this works, but only if the difference is small, and usually only on simple appliances or products.
Can I use a 24V charger for a 12V
Charging from a 24 volt system to a 12 volt system
Using a split charge relay (VSR) would just send the alternator's 24V charging voltage to the 12V battery which would cause damage. Instead, you would need a 24 volt to 12 volt DC-DC charger.
Can I use 18V adapter for 12V
18V would be risky, I would not try to plug a 12V device into an 18V battery. But if you happen to have 18V for whatever reason, you can always use a DC-DC converter.
Can I use 20V charger on 15V battery
If you own a device that requires a 15V current to recharge, a 5V or 20V current would not be compatible. With this being said, we also have to pay attention to the amount of power required by our devices. While some chargers may list the power output in watts (W), other chargers may not.
Can I use a 5V adapter for 12V
That said, I'd suggest against using a 5 volt supply for a 12 volt device. For a start, if it really requires 2 volts (or close to it), you will have a problem because 12 x 2 = 24 watts, while 5 x 2 = 10 watts, so the power supply is under-specced to do the job at maximum load.
Can I use a 7.5 V adapter for a 5V device
1 Answer. You should never use a significantly higher voltage rating adaptor on any kind of electrical device. If you do so you are risking damaging the equipment and anything else that you might have plugged into it.
Can I use 12V adapter for 6V
This will run your battery dry and create a thermal runaway scenario, which is very dangerous. Again, some people use a 12V charger to get their 6V battery jump started, but it is never advisable to use a 12V charger to try to fully charge your 6V battery.
Can I use 12V 2A for 5V 2A
No, You can use a 12V 2A Adapter with a higher current rating, but not one with a lower current rating. The device draws only the current it needs, but the power supply must be able to output the maximum current that the device requires.
What happens if you run 12V on 24V
If you run a 12v motor from 24v its current drain and speed will still depend on the mechanical loading. However under no load it will now run at twice the speed at which it originally ran with 12v.
Can I charge 12V battery with 15v charger
Can you charge a 12 volt 7AH battery with a 15 volt charger Yes, but you have to make sure the current is not too high, that the current slowly goes down as the battery gets charged up, and that the maximum voltage on the battery doesn't go over 14.4V (at most).
Can I use 15v for 12V
Would a device that needs 15v work with a 12v battery Probably. Most devices are pretty happy on lower voltages than they are specifically designed for. If the “battery” is really a “12v system” then it is usually at a higher voltage anyway.
Can I use 15v charger on 12V battery
Can you charge a 12 volt 7AH battery with a 15 volt charger Yes, but you have to make sure the current is not too high, that the current slowly goes down as the battery gets charged up, and that the maximum voltage on the battery doesn't go over 14.4V (at most).
Can I use 19v charger for 15v battery
It is not recommended to charge a 15v battery with a 19v charger as it can cause damage to the battery and the charger.
Can you use 12v adapter for 15v
In short Yes! Most electronic equipment has tolerance of this little variation. E.g a laptop have a battery of 11.1v and uses 19v dc adapter. Some notebook have 7.4 v battery and uses 12v adapter.
Can I use a 6V adapter for 12V
The short version: Voltage (V) should always be the same for both adapter and device. Polarity (plus on the left side or plus on the right side) should always be the same for both adapter and device. Current (A or mA) of the adapter should not be lower than the current of the device but may be higher.
What happens if I use a 5v adapter on a 12V device
That said, I'd suggest against using a 5 volt supply for a 12 volt device. For a start, if it really requires 2 volts (or close to it), you will have a problem because 12 x 2 = 24 watts, while 5 x 2 = 10 watts, so the power supply is under-specced to do the job at maximum load.
Can I use 12V adapter for 7.5 V
You should never use a significantly higher voltage rating adaptor on any kind of electrical device. If you do so you are risking damaging the equipment and anything else that you might have plugged into it.
Can I use a 5V adapter on a 4.5 V device
There is no problem while using a 5v adapter to generate a 4.5v device. A device stating 4.5v actually can generally withstand a voltage appliance of a minimum of 5.5v. Hence there is no problem applying a 5v adapter to that specific device.
What happens if I plug a 12V into a 5V
You cannot use a 12V power supply on a 5V. It will cause the device to draw more current than it is designed for and will likely burn out, causing fire hazards and explosions. In other words, if the applied voltage is more than the maximum rated voltage then the device will undoubtedly fail due to overvoltage.
Can I use 12V adapter for 5V
Can I use 12V adapter for 5V router No. If you are going to use another adapter use one with the same voltage and at least the same amperage. If you use one with less amperage then the device might try draw more juice and burn out the new adapter.
